I have installed sendmail, and while I can receive mails, I’m unable to send. I tried to telnet to port 25 of the destination server, and it fails.
I’m able to do it on other vps I have on another company, so I know the destination server is fine.
this command fails here: $ telnet mta7.am0.yahoodns.net 25 (it never connects…)
In the other vps, it works correctly: $ telnet mta7.am0.yahoodns.net 25 Trying 184.108.40.206… Connected to mta7.am0.yahoodns.net. Escape character is ‘^]’. 220 mta1411.mail.mud.yahoo.com ESMTP YSmtp service ready
Is blocked? Can I ask to unblock it? is necessary that to have a mail server on the vps.
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