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Problem with sendmail/imap

A

Armitage

Banned
Ok, so I finally got imap working - I can remotely retrieve the mail from my server.
However, I can't send via this server.

If I login to the server via SSH, I can start a mail client and send/receive mail.
I now have imap set up such that I can retrive mail from this same account.

In my email client (mozilla) I've set up the server as the outgoing (SMTP) server, but when I try to send, nothing happens. I tried to telnet directly into port 25 on the server, and it just hangs there and eventually times out. Port 25 must be open on the firewall, because sending & receiving mail works fine when I'm logged into the box, but not via IMAP.

Any ideas?
Thanks
 
figured it out - our corporate firewall blocks outgoing connections on port 25.
But I can relay out through the corporate servers 😛
 
not to mention unless you are using pop before smtp you are setting yourself up for becoming a spam relay. if you insist on using your mail sever to send mail from outside your local lan, then you need to setup some sort of authentication for smtp. i believe there is a hack avail for sendmail to allow auth
 
Yea, authentication is turned on for the smtp server. It's an integral part of sendmail - not a hack. That's not the same thing as an open relay though.
 
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