Knowledgebase: Cpanel Control Panel > E-Mail
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Simple Checks for Mail Blocks
Posted by Administrator on 24 December 2009 10:48 PM
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Simple Checks for mail blocks To see if your ISP is blocking 3rd part SMTP and POP Some simple tests you can do. Open a DOS window, type the following: telnet mail.domain.com 25 you should get something like this: 220-cpweb3.idig.net ESMTP Exim 4.34 #1 Mon, 21 Jun 2004 10:57:44 -0700 220-We do not authorize the use of this system to transport unsolicited, 220 and/or bulk e-mail. you can type 'quit' to exit. telnet mail.domain.com 110 result should be: +OK POP3 cpweb3 [cppop 15.0] at [216.187.70.170] you can type 'quit' to exit. Mainly Its SMTP that would give you errors the first one with port 25. If you dont get that result you will need to contact your ISP and ask them what their SMTP (outgoing) mail server is and use that instead of your domain name. | |
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