421 Cannot Connect To Smtp Server Error 10061
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A colleague of mine has encounters errors like: An unknown error has occurred. Account: ‘mail.different.bg', Server: ‘mail.different.bg', Protocol: SMTP, Server Response: ‘421 Cannot connect to SMTP server 212.70.124.241 (212.70.124.241:25), connect 421 cannot connect to smtp server outlook error 10060', Port: 25, Secure(SSL): No, Server Error: 421, Error Number: 0x800CCC67 while he was 421 cannot connect to smtp server incredimail trying to send some emails with his Outlook Express mail client on his desktop computer running Windows XP, since he is not
421 Cannot Connect To Smtp Outlook 2010
too much computer literate he contacted me for help on what is causing the error and how he can get through the issue and send the prepared emails to the destinations ASAP. After I have asked
421 Cannot Connect To Smtp Server Connect Error 10061
him a few questions necessary to better understand the status of the problem and where does it originated I have come to the conclusion that it's very likely that his outgoing SMTP port (25) outgoing TCP/IP traffic passing through the Internet Service Provider is filtered. When the 421 Cannot connect to SMTP server problem occured, he was actually in his parents house provided with an internet connection through a BTC ADSL see server error 421 windows live mail BTC (Vivacom)'s ADSL page for reference I have instructed my friend to try connecting to the SMTP (25) port of the questionable email server using window's telnet client i order to check if my assumption that the outoging SMTP 25 port traffic is filtered. I instructed him to issue a command like which is so common this days and it's not news to the Sysadmins out there: cmd> telnet mail.server.net 25 This prooved my theory that the 421 Cannot connect to SMTP server was caused by a filtered traffic on the outgoing network STMP port (25). Some Internet Providers out there has that annoying practice of filtering the outgoing SMTP connections, because they couldn't deal with infected Windows computers who start acting as a SPAM networks in another more clever way, however I should admit this is pretty dumb, since it creates numerous problems to the end user like in this particular case. The temporary work around for him that I suggested was to use the mail server Webmail Interface before he moves back with his notebook back to his ISP at home which doesn't include such a foolish way to filter spammers. Share this on
Tweet If you're new here, you may want to subscribe to my RSS feed. Thanks for visthe new Plesk version coming out later this year. Visit this thread for more details. Cannot connect
Server Error 421 Sending Email
to SMTP server (Outgoing Mail) Discussion in 'Plesk for Linux - 8.x and 421 cannot connect to smtp outlook 2007 Older' started by acidbox, Sep 6, 2005. acidbox Guest 0 I am having trouble connecting to the 421 cannot connect to smtp server nb connect error 1460 outgoing mail server (SMTP) on my plesk 7.5.4 server. In outlook I get this: Outlook is unable to connect to your outgoing (SMTP) e-mail server.Click to expand... Then if I try http://www.pc-freak.net/blog/what-causes-the-421-cannot-connect-to-smtp-server-error-and-a-quick-work-around/ to telnet to the server, I get this: 421 Cannot connect to SMTP server xx.xx.xx.xx (xx.xx.xx.xx:25), connect error 10060Click to expand... I Opened port 587 in my firewall to try to send mail through an alternate port SMTP will not recognize it. When I try to telnet, I get the following: Connecting To mail.mydomain.com...Could not open connection to the host, on https://talk.plesk.com/threads/cannot-connect-to-smtp-server-outgoing-mail.59367/ port 587: Connect failedClick to expand... Also, there are no errors or connection failures in /usr/local/psa/var/log/maillog Does anyone know why this is happening and how to fix it? acidbox, Sep 6, 2005 #1 jamesyeeoc Guest 0 I Opened port 587 in my firewall to try to send mail through an alternate port SMTP will not recognize it.Click to expand... Other than just opening the port, what configurations did you do to tell SMTP to listen/accept on that port? Was the Outlook error code one of the following: • 0x800ccc15 • 0x80042108 • 0x800ccc0e • 0x8004210b • 0x800CCC0B • 0x800CCC79 • 0x800ccc67 • 0x80040900 (all these indicate no response from mail server) Try telnet'ing to your server on port 25 and 587 to see if you get any response. Post results here. From a SSH root login, see if Qmail and/or IMAP are running in memory: ps -ax |grep 'qmail' ps -ax |grep 'imap' jamesyeeoc, Sep 6, 2005 #2 acidbox Guest 0 Thanks for the reply. If you look at my first post, you will see the results of th
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SMTP error 421 / 0x80042109 - fixed, but uh?> Solved Outlook 2013 cant connect to SMTP error 421 / 0x80042109 - fixed, but uh? Tags: Apps Outlook Connection Internet Service Providers Last response: April 24, 2014 12:55 PM in Apps General Discussion Share James Blonde April 24, 2014 11:34:02 AM I noticed I had a problem with sending mail last week, which has just been fixed by my ISP (who are not my mail provider). I can see exactly what they've done, but it doesn't make sense...! Can someone help? I first noticed the problem last week when sending mail via Outlook, where I was getting the error mentioned in the subject line - cannot connect to SMTP / error 421 / 0x8004219. I could still receive mail without a problem. I had made no changes to the set up at all (same setup I've had for years, through multiple ISP changes), but I have changed my ISP in the last month. I hadn't sent any mail since changing broadband provider until last week. My Mail Provider settings are: mail.freenetname.co.uk smtpmail.freenetname.co.uk Outgoing mail requires authentication Incoming server - port 110 Outgoing server - port 25 I am still able to use these settings on my mobile, as long as I'm not using my home wireless / broadband to connect. If I use wireless, mail will not send. I had run a repair on the PST file, and had played with settings in Avast - 2 potential solutions, which didn't make a difference, so I contacted my ISP today. After a bit of investigation, she made a change to my outgoing mail server, which is now: smtp.orangehome.co.uk untick outgoing mail requires authentication and now mail works. and I don't understand why! Surely my mail settings are governed by my mail provider, not my ISP? Otherwise they wouldn't still work on my phone? Is my mail now being sent via Orange / EE,