Thread: port blocking
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Old 22-11-2007, 23:00   #4
dragon
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Re: port blocking

Quote:
Originally Posted by kfridge View Post
Yes I know which I why I though it strange that they would block it....

I think his problem has been resolved as I have received some emails from him - I think the problem was that he was using Virgins SMTP servers to route emails for his domain, i.e. Virgin are blocking routing emails on port 25 from anything other than their domains. Makes sense I suppose so that spammers can't route email through their servers.
They never blocked port 25 when I used them since I used to connect to external mailservers from a VM connection all the time.

Someone on vm could try this

telnet gryphon.fbdn.net 25

Should get the following responce

Quote:
Connected to gryphon.fbdn.net.
Escape character is '^]'.
220-gryphon.fbdn.net ESMTP Exim 4.68 #1 Thu, 22 Nov 2007 23:01:53 +0000
220-We do not authorize the use of this system to transport unsolicited,
220 and/or bulk e-mail.
Any sane mail server admin would block emails that don't originate from accounts on their mail server from being sent.
Accepting emails for just any old other domain to be sent from your SMTP server is just asking for spammers to abuse it.
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