Sent email rejected
in [Outlook Express]
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From: Bob W on 7 Nov 2007 13:14 Thank you, thank you Bruce and Ricky!! Checking the "Authentication" box fixed it. I wonder why it wasn't working before since I have done nothing with my accounts? I don't know whether the box was checked or not before the problem. Can in arbitrarily uncheck or work without it being checked? Again, your help was appriciated! Have a great day. Bob "Ricky" wrote: > On the tools..accounts..mail..properties..server tab make sure the 'My > Server Requires Authentication' box is checked. > > "Bob W" <BobW(a)discussions.microsoft.com> wrote in message > news:21071A19-C548-48E3-8D20-DA2633942B38(a)microsoft.com... > > Thanks for response, Bruce. > > I have already phoned Comcast and these were correct: POP3; > > mail.comcast.net; smtp.comcast.net. Is that what is meant by > > "authentication > > checked"? > > Bob > > > > "Bruce Hagen" wrote: > > > >> Tools | Accounts | Mail | Properties | Servers. Is: My Server Requires > >> Authentication checked? The error message suggests that it should be. > >> -- > >> Bruce Hagen > >> MS-MVP Outlook Express > >> Imperial Beach, CA > >> > >> > >> "Bob W" <Bob W(a)discussions.microsoft.com> wrote in message > >> news:239BF2CB-5CEF-40AD-AA85-CEC253F9901F(a)microsoft.com... > >> > Outlook Express has been used for a long time with no problems and nor > >> > alterations have been made. 4 days ago the sent emails were rejected. > >> > I > >> > turned off computer over night and it worked again the next day. Then, > >> > yesterday, the sent emails were rejected and I shut off computer > >> > overnight. > >> > Error problem still exists. Receiving emails works OK. I can send OK > >> > through webmail at Comcast, but not from OE. Here is the Microsoft > >> > error > >> > message: > >> > > >> > The message could not be sent because the server rejected the sender's > >> > e-mail address. The sender's e-mail address was > >> > 'bobwilmot(a)comcast.net'. > >> > Subject 'testing', Account: 'Bob Wilmot', Server: 'smtp.comcast.net', > >> > Protocol: SMTP, Server Response: '550 5.1.0 Authentication required', > >> > Port: > >> > 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC78 > >> > > >> > > >> > >> > > >
From: Peggy W. Peggy on 7 Nov 2007 13:16 Bob, I have had the exact same problem for 3 days now. I just went in and UNCHECKED "My Server Requires Authentication" and all of my outgoing mail just left! Hope it works for you too. "Bob W" wrote: > Outlook Express has been used for a long time with no problems and nor > alterations have been made. 4 days ago the sent emails were rejected. I > turned off computer over night and it worked again the next day. Then, > yesterday, the sent emails were rejected and I shut off computer overnight. > Error problem still exists. Receiving emails works OK. I can send OK > through webmail at Comcast, but not from OE. Here is the Microsoft error > message: > > The message could not be sent because the server rejected the sender's > e-mail address. The sender's e-mail address was 'bobwilmot(a)comcast.net'. > Subject 'testing', Account: 'Bob Wilmot', Server: 'smtp.comcast.net', > Protocol: SMTP, Server Response: '550 5.1.0 Authentication required', Port: > 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC78 > >
From: Bruce Hagen on 7 Nov 2007 13:19 You're welcome. Comcast has a habit of changing things fairly often, but I don't know if this is recent or not. If you do find that some settings become unchecked seemingly on their own, keep this in mind. Settings that become unchecked may be caused by one or more of the following programs. There are probably others that will do it as well. Ad-aware's Ad-Watch IBM Access Connections McAfee VirusScan and/or Antispyware Norton AV Spyware Blaster Spybot> Tools> IE Tweaks Spybot- Teatimer Spysweeper Spyware Doctor Windows Defender Zone Alarm (free) 6.5 Reported to be fixed in later versions. In the case of Zone Alarm 6.5 or Norton 2007 it actually has to be uninstalled. Make sure the Windows Firewall is turned on until you reinstall Zone Alarm. Boot into Safe Mode with Networking and try the change. -- Bruce Hagen MS-MVP Outlook Express Imperial Beach, CA "Bob W" <BobW(a)discussions.microsoft.com> wrote in message news:FA095EFD-DCDE-4230-8412-3F46802D7D84(a)microsoft.com... > Thank you, thank you Bruce and Ricky!! Checking the "Authentication" box > fixed it. I wonder why it wasn't working before since I have done nothing > with my accounts? I don't know whether the box was checked or not before > the > problem. Can in arbitrarily uncheck or work without it being checked? > Again, your help was appriciated! Have a great day. Bob > > "Ricky" wrote: > >> On the tools..accounts..mail..properties..server tab make sure the 'My >> Server Requires Authentication' box is checked. >> >> "Bob W" <BobW(a)discussions.microsoft.com> wrote in message >> news:21071A19-C548-48E3-8D20-DA2633942B38(a)microsoft.com... >> > Thanks for response, Bruce. >> > I have already phoned Comcast and these were correct: POP3; >> > mail.comcast.net; smtp.comcast.net. Is that what is meant by >> > "authentication >> > checked"? >> > Bob >> > >> > "Bruce Hagen" wrote: >> > >> >> Tools | Accounts | Mail | Properties | Servers. Is: My Server Requires >> >> Authentication checked? The error message suggests that it should be. >> >> -- >> >> Bruce Hagen >> >> MS-MVP Outlook Express >> >> Imperial Beach, CA >> >> >> >> >> >> "Bob W" <Bob W(a)discussions.microsoft.com> wrote in message >> >> news:239BF2CB-5CEF-40AD-AA85-CEC253F9901F(a)microsoft.com... >> >> > Outlook Express has been used for a long time with no problems and >> >> > nor >> >> > alterations have been made. 4 days ago the sent emails were >> >> > rejected. >> >> > I >> >> > turned off computer over night and it worked again the next day. >> >> > Then, >> >> > yesterday, the sent emails were rejected and I shut off computer >> >> > overnight. >> >> > Error problem still exists. Receiving emails works OK. I can send >> >> > OK >> >> > through webmail at Comcast, but not from OE. Here is the Microsoft >> >> > error >> >> > message: >> >> > >> >> > The message could not be sent because the server rejected the >> >> > sender's >> >> > e-mail address. The sender's e-mail address was >> >> > 'bobwilmot(a)comcast.net'. >> >> > Subject 'testing', Account: 'Bob Wilmot', Server: >> >> > 'smtp.comcast.net', >> >> > Protocol: SMTP, Server Response: '550 5.1.0 Authentication >> >> > required', >> >> > Port: >> >> > 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC78 >> >> > >> >> > >> >> >> >> >> >> >>
From: Bob W on 7 Nov 2007 14:18 Peggy, it is funny that your "unchecking" and my "checking" both worked. Is Comcast your ISP? bw "Peggy W." wrote: > Bob, I have had the exact same problem for 3 days now. I just went in and > UNCHECKED "My Server Requires Authentication" and all of my outgoing mail > just left! Hope it works for you too. > > "Bob W" wrote: > > > Outlook Express has been used for a long time with no problems and nor > > alterations have been made. 4 days ago the sent emails were rejected. I > > turned off computer over night and it worked again the next day. Then, > > yesterday, the sent emails were rejected and I shut off computer overnight. > > Error problem still exists. Receiving emails works OK. I can send OK > > through webmail at Comcast, but not from OE. Here is the Microsoft error > > message: > > > > The message could not be sent because the server rejected the sender's > > e-mail address. The sender's e-mail address was 'bobwilmot(a)comcast.net'. > > Subject 'testing', Account: 'Bob Wilmot', Server: 'smtp.comcast.net', > > Protocol: SMTP, Server Response: '550 5.1.0 Authentication required', Port: > > 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC78 > > > >
From: VanguardLH on 7 Nov 2007 15:13 "Bob W" wrote in message news:FA095EFD-DCDE-4230-8412-3F46802D7D84(a)microsoft.com... > Checking the "Authentication" box fixed it. > I wonder why it wasn't [was?] working before since I have done > nothing > with my accounts? E-mail providers change their requirements. Some are slow to implement anti-spam measures. Many now want to ensure you have permission to use their resources rather than a spammer trying to hide on another domain while using someone else's mail server. For info on off-domain port 25 (SMTP) traffic blocked to thwart spam from spamming or infected customers, read: http://www.commercestreet.com/Blocking_Port_25.htm http://help.yahoo.com/help/us/mail/pop/pop-38.html http://www.postcastserver.com/help/Port_25_Blocking.aspx http://www.aota.net/Troubleshooting/port25.php4 http://www.spamhaus.org/faq/answers.lasso?section=ISP%20Spam%20Issues... http://www.findarticles.com/p/articles/mi_zdewk/is_200406/ai_ziff129473 http://www.google.com/search?q=%2Bblock+%2B%22port+25%22+%2BSMTP+%2Bspam One, some, or all of the following could have changed or are being implemented: - Your ISP (the network to which you connect) requires you use their mail servers. They do not permit you crossing their network to use an off-domain mail server over which they have no control and cannot log e-mail traffic that uses their network. Usually this means they block e-mail traffic using port 25 that targets an off-domain network; however, it is also possible with protocol analyzers to detect traffic is for e-mail and block that traffic. This is probably why Gmail opted to force SSL connects because they use ports other than the standard of 110 for POP3 and 25 for SMTP since everyone using Gmail is trying to cross their ISP's network to get at an off-domain mail server. - The targeted mail server does not allow off-domain connections (or requires non-standard setup of SSL, different port numbers, and/or SPA to make off-domain connections). You are crossing your ISP's network to reach the targeted mail servers, but to those mail servers you are not on their network when trying to connect to those mail servers (i.e., you are off-domain to them). You will need to check what settings AOL requires for off-domain connections which could be different than for on-domain connections. My ISP (Comcast) is like that: while on their network, you connect to their mail servers using 110 for POP3 and 25 for SMTP but when coming from off their domain then you need to use SSL, 995 for POP3, 465 for SMTP, and also use SPA to connect to their mail servers. - Some e-mail providers require that you send before you receive. Many e-mail clients receive first and then send. As a result, the expectation is that the mail server will reuse the login for the receive session also for the send session but the send session has to be within a short time after the login for the receive session (not from when the receive session ends). If there are lots of mails or delays, too much time elapses and those login credentials for the receive session are lost so you cannot send. The cure is to enter your login credentials for the send session (SMTP) or to change the order of sessions within your e-mail client (send and then receive). Maybe I missed it but I don't see an option in OE (so it probably isn't there in WLM) to change the order of the sessions (i.e., to receive first and then send, or to send first and then receive). Instead and when defining e-mail accounts in any e-mail client, I always configure the SMTP server settings to require authentication and then specify the same login credentials as for the POP3 server (rather than say to reuse them). This means I have to twice enter my login credentials: once for the POP3 configuration and again for the SMTP configuration. Just because you don't change anything doesn't mean your e-mail provider cannot.
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