Outlook 2007 Error: None of the Authentication Methods Supported By This Client Are Supported By Your Server

Software

I ran into the following issue this week while traveling on business to Las Vegas: Sending e-mail from Outlook 2007 was failing with the error:

None of the authentication methods supported by this client are supported by your server.

I thought this was odd, as I hadn’t changed anything with the configuration — just a different network. I hunted around, and determined a possible fix was to disable the “My outgoing server (SMTP) requires authentication” option on the Outgoing Server tab in Outlook. This worked! Strange.

Coming back to Seattle, I was unable to send e-mail again, with the following (different) error:

550 5.7.1 Unable to relay for <email>

Turning the “My outgoing server (SMTP) requires authentication” back on fixed this problem.

This seems like a very strange problem. It has to be network related, but what about the particular network would cause this? Dunno.

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93 Comments

92 Comments

  1. Rob Eden  •  Jan 20, 2008 @7:08 pm

    Thanks very much for the information. I was going nuts trying to work out why I was geting that message. Like all very difficult things in life, the solution was so simple.

  2. Tim Maler  •  Jan 29, 2008 @5:06 am

    Thanks for that tip. I almost un-installed Norton’s and re-installed it. This saved me a lot of time!

    Thanks Again

    Tim Maler

  3. alan  •  Feb 7, 2008 @1:17 pm

    Hello,
    Disabling the “My outgoing server (SMTP) requires authentication” option on the Outgoing Server tab in Outlook did not work for me, when I did this and tested the outgoing email another error message came up “ox800ccc69.
    can anyone help.

    I recently had to re format the hard drive in re install XP, since then I can recieve emails but have been unable to send any.

    many thanks

    alan

  4. Anthony Stevens  •  Feb 7, 2008 @2:44 pm

    alan: you might try checking out http://forums.techguy.org/web-email/412765-solved-outlook-unknown-error-0×800ccc69.html
    or http://forums.techguy.org/web-email/551185-error-0×800ccc69-unknown-error.html. If you’re technical, you might try telnet on port 25 to make sure you can connect to your mailbox directly.

    Good luck!

  5. K N Narendra  •  Feb 22, 2008 @5:40 am

    It worked for me by selecting “Auto” against the option “use the following type of encrypted connection”. Hope it will work for you.

  6. Tim Tupy  •  Mar 9, 2008 @8:54 am

    Thank you. I finally searched the error message and found this. This worked. I almost feel bad how much I was getting upset with the Charter Internet Rep. I now think it is a Microsoft issue.

  7. JLogan  •  Apr 21, 2008 @3:03 am

    Funny, for me it is the opposiste. At home I have to have the STMP checked, when traveling I had to uncheck it.

  8. Tosin  •  May 12, 2008 @12:03 am

    “Oh the pain! the agony you have averted me cannot go unacknowledged thanks a zillion”

  9. Scott  •  May 16, 2008 @10:24 am

    I’m sitting pool-side in Vegas right now and I’m having this exact issue on my laptop. I’ve traveled to California and Hawaii recently with no issues. I live in Seattle and everything works fine there, at home at work, in coffee shops, etc.

    This issue is freaking me out. It doesn’t make any sense and it feels a little big brother. My email servers require STMP authentication to send mail, which is why that check box is checked. When I uncheck it, emails go out just fine. How can this be? My server REQUIRES authentication to relay email. Is Vegas exempt? How can this be? How could my host’s email server successfully relay an email sent without authentication only from Vegas?

    If anyone has deeper technical insight into this, please post here. I’m dying to know. Thanks.

  10. Rich  •  Jun 14, 2008 @4:13 pm

    Almost regretting upgrading from my stable Outlook 2003.

    I think this issue started after a recent Microsoft Update. The only thing that worked for me was to also change(In the Advanced Tab) Use the following type of encrypted connection: to Auto.

  11. Jereriah Manning  •  Jul 18, 2008 @7:05 am

    This is related to the ISP of the network you are connected to. Some ISPs require authentication as it helps to cut down on spam sent over their network, other ISPs do not require and error when you try and authenticate. I deal with this one all the time when my Sales Managers travel. It happens in Office 2003 as well, but the error is little more helpful.
    ~jm

  12. Linda Urban  •  Jul 20, 2008 @7:11 pm

    Thanks so much for the info. I had tech support on the computer for an hour today and they couldn’t figure it out..One click and poof, problem gone. What a great resource for all of us!
    Thanks!

  13. Matt  •  Jul 24, 2008 @9:15 am

    This was a great help. Thanks my email works great now

  14. Elizabeth  •  Aug 7, 2008 @4:43 am

    Thanks K N Narendra, that worked for me. It had been set to none. But now works just fine.

  15. bert  •  Aug 12, 2008 @11:30 am

    Wow, 2 XP PCs running Outlook 2007, in the same room, using the same switch, on the same network. This one wants it unchecked the other wants it checked. Go freakin figure!

  16. Happy Hong Kong  •  Aug 24, 2008 @5:51 am

    Happy Happy Joy Joy. Thank you to everyone – what a pesky problem. Aussie travelling in HK Your fix worked perfectly

  17. srinivas  •  Aug 25, 2008 @1:43 am

    it worked for me as well. thanks a lot

  18. Valerie  •  Aug 25, 2008 @8:52 pm

    Thank you SOOOO much! I’m stuck in Vegas and on a deadline – this was a lifesaver!!! :-)

  19. David  •  Aug 30, 2008 @6:51 pm

    I had this problem on Outlook 2007. On the Outgoing Server tab (Account Settings | Change | More settings | Outgoing Server tab)
    I checked “My outgoing server requires authentication” and “Log on to incoming mail server before sending email.” This worked. Thank you for pointing me in the right direction!

  20. JIm  •  Sep 19, 2008 @12:57 pm

    On the Outgoing Server tab (Account Settings | Change | More settings | Outgoing Server tab)
    I un-checked “My outgoing server requires authentication”

    This worked, my service provided says it does not

  21. Jamie  •  Sep 22, 2008 @6:12 pm

    My Outlook started coming up with this error one day. I unchecked “My outgoing server requires authentication” and it now works great. Strange thing is it is a desktop system that has not moved that suddenly had the problem. Must be something to do with an update as a previous comment said.

    Thanks for the help :)

  22. PasswordPopUps  •  Sep 24, 2008 @1:14 pm

    I am getting the “Noe of the authentication methods…” error and an “Enter Network Password” popup requring the
    Server, UserName and Password…thing is even when everything is entered I am still not able to SEND or RECEIVE from Outlook 2007.

    Any Suggestions or Solutions?!

    Thanks!

  23. Anthony Stevens  •  Sep 24, 2008 @3:39 pm

    @PasswordPopUps: That second popup is strange – I’ve never seen that one in conjunction with the first one. My only advice would be to delete and re-create your account in Outlook 2007, and see if that helps.

  24. Ray  •  Oct 21, 2008 @9:26 am

    This happened to me after upgrading from 2003 to 2007 Outlook. In advanced settings for the account, I set “logon before sending mail” and that fixed it.

  25. Ray  •  Oct 21, 2008 @9:30 am

    I found that some servers require this (logon before sending) and others do not.

  26. THANK YOU  •  Nov 9, 2008 @3:44 am

    almost burnt down the hotel,, thanks for your hint !

  27. Gavin Ingham  •  Nov 26, 2008 @1:00 am

    Thsi is a problem I never had until I migrated to Vista but is one I have been getting quite consistently for a couple of weeks now… Your solution worked a treat in this hotel so let’s hope it works as well elsewhere!

    Many thanks
    Gavin

  28. Sandy  •  Nov 30, 2008 @5:48 pm

    Thank you so much! I started having this problem while traveling and connecting to various B&B wireless networks in Australia. I was on the verge of going through the pain of trying to repair the pst file, when I ran across this post – all fixed now!

  29. Becky Mollet  •  Dec 2, 2008 @1:31 pm

    I have switched to Outlook 2007. This is truly a strange problem – one day I can only send out emails with the authentication checked other days I have to uncheck authentication. I am not traveling so I don’t believe it has anything to do with the city…it sounds more like an microsoft update problem. For now I just keep switching back and forth whatever gets the mail out that day – frustrating.

  30. J Kennedy  •  Dec 7, 2008 @9:53 am

    K N Narendra, you are a star! Thank you!

    JK

  31. HWardoyo  •  Dec 10, 2008 @9:07 pm

    Thanks a lot… really, reallyyyyyyyy help mee.. all of you the best.. keep on sharing guys…

  32. Elizabeth P  •  Dec 14, 2008 @7:31 am

    THANK YOU!!! What a frustrating problem with such a quick fix.

  33. Mohammed  •  Jan 2, 2009 @2:06 am

    I just downloaded the y pops to merge my yahoo account with Microsoft outlook. it worked great. But I get an error message “None of the authentication methods supported by this client are supported by your server” while trying to send a test email. I have all the steps mentioned above. Nothing worked for me..If I un check “My outgoing server SMTP requires authentication” and try sending mail it says “Your outgoing (SMTP) e-mail server has reported an internal error. If you continue to receive this message, contact your server administrator or Internet service provider (ISP). The server responded: 554 Cannot send message.”

    This has been really frustrating..I like outlook much…Please someone help get this fixed….

  34. Charmaine  •  Jan 4, 2009 @8:21 pm

    I ran into this problem after upgrading from 2003 to 2007 too. I had tried just about every configuration possible. Clicking the “log onto incoming mail server before sending mail” worked for me. This seems really dumb since my outgoing server is different than my incoming server – my husband’s computer a few feet away, also running XP but office 2003, connected to the same network, using same outgoing SMTP server, does not require this checked. Gotta love Microsoft!

    Thanks for the help though – I can now send email again :-)

  35. arvind  •  Jan 7, 2009 @6:18 am

    just had the same issue with outlook 2003. i just sent a mail and everything was fine. now sending and im getting the error. disabled the outgoing server requires authentication and i got a diffrent error. checked my website on mxtolbox and its blocked due to spamming…..im almost sure once removed ill get back on track.

  36. Tom  •  Jan 8, 2009 @4:31 pm

    I just ran into the problem of no authentication method in vegas and noticed several others were in vegas also. I also notices that the reason you had to turn off authentication is that my outgoing server never gets the mail. The local network is redirecting outgoing mail to a different server and of course it does not need authentication. I see that my outgoing mail is routed through coxhn.net and not through my emial server. I dont know why they are doing this and if there is any snooping of what is in the email going on but I really dont like it when someone redirects my data without telling me.

  37. QM  •  Jan 17, 2009 @1:09 pm

    “The local network is redirecting outgoing mail to a different server and of course it does not need authentication. … I dont know why they are doing this and if there is any snooping of what is in the email going on but I really dont like it when someone redirects my data without telling me.”

    I think you’ve nailed it. I’m traveling in China and encountered the same problem depending on where I’ve connected. One hates to get all “conspiracy theory” but it’s probably some aspect of the Chinese security measures at this end and Homeland Security in Vegas.

  38. Tinashe  •  Jan 26, 2009 @11:11 pm

    Thanks a lot. Just got back from a business trip only to find my outlook was not sending. I had spent the past two days trying to figure out what went wrong. This has worked, thanks a lot.

  39. Jason  •  Jan 27, 2009 @9:53 am

    Hey thanks for the tip, I left “My outgoing server requires authentication” CHECKED, but checked off the option on the bottom, “Log onto the incoming mail server before sending mail” and it worked. May work for some and may not work for others. I think it depends on the mail servers.

  40. Gergus  •  Jan 27, 2009 @10:50 am

    Might want to just try this and see if it works, edit your existing e-mail account, click on the more settings button, go to the advanced tab, and make sure your outgoing server (smtp) is set correctly. Most standard is set to 25.. try setting it to 2525

  41. rinne555  •  Feb 12, 2009 @9:00 pm

    None of these fixes worked for me when traveling. I went to out of town ISP’s website and searched “set up email for Outlook 2003.” Searched showed me the incoming POP3 and outgoing SMTP for the provider. In my case I needed to replace my home ISP “outgoing.verizon.net” with “mail.optonline.net.” Instantly, the messages left my outbox and no more outlook error messages. I don’t know enough about computers to know why this did the trick but hope it helps others that don’t get the same relief all these other great tips provided.

    Thanks all,
    rinne555

  42. Sara  •  Feb 20, 2009 @2:15 pm

    omg – i love you :) haha — i was going nuts trying to figure out what was wrong after my upgrade – no one is in the office today but me and none of my urgent appointment confirmations were being set. WHEW~

  43. laurie  •  Feb 23, 2009 @3:53 pm

    I thought I would never get it fixed! My ISP pretty much gave me a “beats me” but this did it! I ended up having to leave SMTP checked but also check the login first and now it works great. I wasted a week on this – thank you guys so much!

  44. Jagtesh Chadha  •  Mar 29, 2009 @12:05 pm

    Thanks!

    Apparently that fixed my problem as well. Maybe it has something to with Delivery/Mail Read receipts.

  45. Mick H  •  Apr 2, 2009 @2:21 pm

    When I deselected the authentication tab, some messages would send others would not. I hadn’t realised that I had to do this to both email accounts as the deselection is not a global command. Once I had done this to both accounts all was ok.

  46. wailea  •  Apr 13, 2009 @4:07 pm

    thank you thank you! when will i learn to google first instead of going to the gd msft website. i spent 3 hours installing a service pack over the slow wireless connection…to no avail. followed your simple advice and am all set! thanks a million!

  47. Amit Vajpeyee  •  Apr 15, 2009 @1:10 am

    Thanks a lot. Thanks for this article. It saved me from embarassment infront of my Boss’s wife. Yippee..!! Lolz..!! ;-)

  48. Pat  •  Apr 19, 2009 @12:18 pm

    I upgraded 2003 to 2007 and got this “None of the authentication methods supported by this client are supported by your server” when I had changed nothing else and I was at home connected to my ISP.
    Selecting “Log on to incoming mail server before sending mail” fixed it for me. Looks like 2007 is causing the problem, initially.

  49. Fred  •  Apr 28, 2009 @12:31 am

    It’s 3:30 AM here in dark Florida. But the AM is brighter now that you guiys resolved this problem for me.

  50. Tyson  •  Apr 29, 2009 @3:17 pm

    Thanks for the solution- I have puzzled over this one for awhile. I exhausted search options at Microsoft, waited on hold with my server toll-free line till I lost patience and then did a quick internet search, got your fix and it worked!

  51. Garrett H.  •  Apr 30, 2009 @4:00 pm

    Thanks for the advice! Strange I know, but it worked for me too! Saved me a headache!

  52. Ambiorix  •  May 20, 2009 @4:32 am

    excusame for my other comment,
    Disabling the “My outgoing server (SMTP) requires authentication” option on the Outgoing Server tab in Outlook worked for me perfectly for me thanks..,

  53. Fred Morrison  •  May 30, 2009 @4:22 pm

    Detailed steps that fixed this issue for me while traveling to Richmond, VA and using Outlook 2007:
    1. Tools/Account Settings…
    2. In the Email tab, highlight the email account you wish to change.
    3. Click Change…
    4. Click More Settings…
    5. Click the Outgoing Server tab
    6. Change from “Use same settings as my incoming mail server” to “Log on to incoming mail server before sending mail”.
    7. Click OK.
    8. Click the Test Account Settings… button.
    9. Verify that “Send test e-mail message” worked correctly.
    10. Click Close.
    11. Click the “Next” button.
    12. Click Finish.

  54. Art  •  Jun 7, 2009 @11:04 pm

    I tried unchecking the “My outgoing server (smtp) requires authentication”. The messages are sent immediately – HOWEVER, only messages sent to addresses in the server’s domain will be delivered. Messages sent to other domains are just lost. So those who think this option works, you may want to verify that messages are actually delivered.

    This authentication scheme has been in place for years. Good SMTP servers do not just accept messages from anyone, else they will be blacklisted if spammers go through them. If you use the ISP’s smtp server, then you don’t need authentication because ISP knows who you are.

    I encounter similar problems described by Becky Mollet • Dec 2, 2008 @1:31 pm and some other people. For my case, I have to keep changing back and forth between “Use same settings as my incoming server” and “Login to incoming mail server before sending mail”. WHATEVER GETS THE MESSAGES SENT !!!

  55. Ram  •  Jun 11, 2009 @7:16 am

    I had the same issue of ” None of the authenication… supported by your server” and when I checked the authentication using SMTP and checked log on to incoming mail server and finally when I tested the account settings, I got this error ” Server Responded: 554 5.7.1 header forgery”.

    My incoming is Pop and out going is SMTP server. I was unable to send any messages and tried all the options mentioned above. Please help me with this!

    Thanks,

  56. Deacon Hughes  •  Jul 14, 2009 @4:14 pm

    Thanks for publishing this it was exactly what I needed to fix my outlook ‘07 problem!!

  57. Fran Thompson  •  Jul 21, 2009 @5:47 am

    I had just flown 24 hours from Hong Kong to Chicago and when I checked into my hotel at 2am I had no idea what was causing the problem. Thank you so much for explaining how to fix it, the second i did what you told me to my outlook 07 sent all the messages I had been writing on the plane which obviously needed to be sent the moment I had web access.

  58. Harold  •  Jul 30, 2009 @6:24 am

    Many thanks, that solved my problem.

  59. Ginger  •  Aug 4, 2009 @6:08 pm

    YAY! After futzing for nearly 2 hours, I find your post and it works!

  60. Jose  •  Aug 14, 2009 @1:37 pm

    Same sort of problem after using 2003 then upgrade to 2007. I can receive, but not send.

    Comcast is my ISP on broadband (cable) wireless home network.

    Thanks, whoever suggested this:

    Change(In the Advanced Tab) to use the following type of encrypted connection: to Auto.

  61. Jose  •  Aug 14, 2009 @1:40 pm

    Oops!

    … Be sure to “finish” the Outlook wizard! The change works, test works, but it won’t stick )it looks like it sticks though) if you don’t Next, Finish, etc…

  62. Phil  •  Aug 26, 2009 @11:59 am

    I changed to
    Log on to incoming mail server before sending mail
    and left the authentication boxed checked (which made me feel better somehow) and the issue was resolved.

    Just thought I’d leave yet another option. Great blog topic. It did resolve my issue.

  63. Mike Donnellan  •  Sep 1, 2009 @7:43 pm

    Mighty fine, mighty fine! Most excellent information, worked for me.

    Many thanks
    –Mike

  64. Anthony Nichols  •  Sep 9, 2009 @1:47 pm

    None of these work for me and it is driving me mad! Somehow the outgoing hotmail server just will not synchronize.

  65. David  •  Sep 11, 2009 @8:28 am

    I think an important point that hasn’t been mentioned is that when you are using a ‘different’ connectivity provider than your normal one, they can force your email to go through their email servers, not the one you usually use.

    So even though your email server may require authentication, there is no guarantee that you are actually using your own email server – your outgoing email could be routed through a hotel’s email server or the local provider’s email server. You would NOT be aware that this is happening.

  66. Wickyd  •  Sep 14, 2009 @6:29 am

    Dude, you completely rock!

    My message is to thank you from the other side of the equation. I work for an ISP and this problem happened to two different clients simultaneously today.

    We were baffled by this problem as we knew the fault was not within our network topology.

    This solution is completely unituitive and we would not have thought about it, as most of our clients have their own pop3 servers and use our smtp server. Why would I need to authenticate to the pop3 server first, which has nothing to do with our smtp server?

    Thank you!

  67. Owolabi  •  Sep 16, 2009 @2:20 am

    Hi all please can some one help me!

    I am network admin in my company and we have exchange 2003 server and all users are running outlook2007 but on one of the users outlook always pop up for username and password. im tired of this authentication popup.

    please heeeeeeeeeeeeeeeeeeeeelp. thanks

  68. Bob  •  Oct 4, 2009 @12:02 pm

    Just fixed my issue by selecting “log on to in coming email server before sending mail” Fixed my issue.

  69. Wendy Gull  •  Oct 16, 2009 @12:57 pm

    I had a sympatico internet account that I was trying to configure multiple pop3 accounts on in Outlook.
    The only thing that worked for me was to use the pop settings for the mail account and then change the smtp settings to the local ISP account and in the advanced tab, select Auto for encryption type.

  70. Mikey  •  Oct 20, 2009 @5:36 pm

    Thanks this all started after I upgraded from Outlook 2003 to Outlook 2007. Receiving was no problem. Just sending. thanks a bunch for that fix

  71. Diane  •  Nov 5, 2009 @9:54 am

    I have been running Outlook 2007 and Vista very successfully for several months. Yesterday after a Vista update my Outlook 2007 problems started. at first I couldn’t open outlook at all — I recreated my profile. Finally I could receive mail but couldn’t send it. So I disabled the “My outgoing server (SMTP) requires authentication” option on the Outgoing Server tab in Outlook.

    I am wondering if this is a big in Vista and Outlook 2007 and Pop??
    thanks for the fix.

  72. Tom  •  Nov 12, 2009 @12:41 pm

    Thanks man!

  73. Luis  •  Nov 13, 2009 @6:31 pm

    I was going nuts with this. My virtual server email accounts were giving me this error, but my BrainiacDomains.com email accounts were working just fine. I unchecked the Authentication box for my vded based accounts and left it checked for my BrainiacDomains.com account. The world makes sense now. Thanks.

  74. Luis  •  Nov 13, 2009 @7:47 pm

    Upon further research I believe I figured out why the error was occurring on my vded server.

    My ISP blocks port 25, and refuses to unblock it for any reason. They cite security concerns. When I setup my vded I enabled an alternate SMTP port to allow me to relay through my vded email accounts.

    When I setup the port, I didn’t require SMTP authentication in the port configuration file. This resulted in the Outlook 2007 error when Outlook was configured to authenticate but the SMTP port was not.

    I updated the port configuration file to require authentication, and Outlook no longer generates the error when I configure it to authenticate.

    The bottom line: You will see this error when you are attempting to force Outlook 2007 to authenticate on the SMTP port when the SMTP port does not require authentication.

  75. vinoth  •  Dec 30, 2009 @7:26 am

    THANK YOU FOR GIVE WONDERFUL TIPS TO ME

  76. Brian  •  Jan 10, 2010 @6:17 pm

    How Funny, and How sad. This worked very well for me. Thanks.

  77. Amitg  •  Jan 12, 2010 @4:37 am

    Thanks K N Narendra this has helped me a lot to solve the problem which we were facing last two days & the client was also engry. Thanks Agin.

  78. M Cronje (Pretoria, South Africa)  •  Feb 28, 2010 @8:40 am

    When I started using Outlook 2007 I got this message. Talking to a technician of the service provider before reading the tips above did not help. When I marked “Log on to incoming mail” it solved the problem. To get to that tick box I had to mark “My login server (SMTP) requires authentication”. I use different servers because I want to retain my old e-mail address. So I use the old pop server and logon username and password with the SMTP server of my new ISP. Thanks a lot.

  79. valerie ross  •  Mar 4, 2010 @3:07 am

    Anthony
    You are a star. I was getting the message ‘None of the authentication methods supported by this client are supported by your server’ after upgrading to Outlook 2007 and your solution worked for me. Now I look good in front of my boss, and not the numpty that I actually am. Hurrah for the internet, and people like you!
    Thank you.
    Valerie Ross

  80. anthonyrstevens  •  Mar 4, 2010 @7:26 am

    Thanks for the kind words Valerie! I’m very glad that this solution worked for you.

  81. Stuart Laverick  •  Mar 25, 2010 @10:21 am

    Oh the joy you bring to my sad little day. Spent 2 hours trying to get a client to connect to their mail server with Outlook 2007. First SpamHause Zen rejected him (but not his colleagues in the same office?), then when we moved to Spamhause SBL rather than Zen (as it doesn’t include the PBL list) we got this mad error!
    I wouldn’t mind but I don’t use Outlook – I’m on Ubuntu!!

  82. Iris Perry  •  Mar 31, 2010 @9:05 pm

    Thank you, thank you thank you! I was dealing with this problems for 2 weeks. Not being able to send out messages, I thought that I was going to pull out all my hair. I just unchecked the Require SPA box & wow, it started to send out messages. You guys are the best!

  83. Herman  •  Apr 3, 2010 @2:45 am

    Thank you! this solved a very irritating problem for me!

  84. Steven  •  Apr 27, 2010 @10:52 am

    Thanks a lot for the info particularly Fred Morrison’s detail steps … you guys are wonderful …

  85. Jim thompson  •  May 1, 2010 @5:43 am

    Same problem with Office 2010!
    Thank you so much, I was just at the “Start throwing things” when I found you. Same pc, same os, same mailserver, same everything. But.
    Outlook express = tick the little box… Office 2010 = untick the little box.
    Thanks again I shall save your site for the next time my brain boils.
    Jim.

  86. Elizabeth  •  May 16, 2010 @5:25 am

    Thank you so much! This made my day!

  87. Brian U  •  May 17, 2010 @8:52 am

    You ROCK! We had no clue what was causing this. I’m here at CA World this week and couldn’t believe the (bad) luck I was having sending email. Thanks for the great fix.

  88. Christa  •  May 17, 2010 @9:33 am

    Yeah! It worked for me. Thank you for your help and blog post :)

  89. Lynn Wolf  •  May 27, 2010 @11:43 am

    Thank you!! You’re my hero. Your fix worked immediately!

  90. sirish  •  Jul 23, 2010 @10:48 pm

    Thanks a tooooooooooooooooooooon for ur Guidance

  91. sandeep  •  Jul 26, 2010 @1:44 am

    Hi, I tried outgoing authentication as Auto, I also tried authenticate using incoming server, also i unchecked SMTP requires authentication but nothing worked I am still facing problem please help me out……

  92. Mames  •  Aug 20, 2010 @7:02 pm

    I have Outlook on Windows 7 running 2 different email accounts in the same instance of Outlook. One requires the box checked, the other unchecked!

    How in the world does is that possible?

    Thanks for the help I don’t care what box is checked where, I just want it to work!

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