1
vote
1answer
290 views

Can Telnet to port 21 but not 25, 110

I am running postfix and dovecot on my Centos Mail server. Now I can send mail from the server to the outside, BUT I cannot receive mail from the outside. TELNET: When I telnet to my ip address to ...
0
votes
1answer
3k views

postfix: Temporary lookup failure for FQDN

I'm using the FQDN of dur.bounceme.net which I want to resolve(?) to localhost. That is, I want mail to user@dur.bounceme.net to get delivered to user@localhost. I've tried following the Ubuntu ...
0
votes
1answer
70 views

Cannot connect to email server from a remote pc

When I try to connect to my mailserver from my home pc like this telnet whomakescoffee.com 25 I cannot connect. If I type in the same command on my server there is no problem. I have also tried ...
2
votes
4answers
1k views

script to test mail server

Ever since a windows update that took down my IIS6 mail server a few weeks back, I've been really paranoid about my mail server working. So every time I run a windows update I fire up command prompt ...
0
votes
7answers
1k views

What might be causing telnet not to work from the mail server?

We are having and issue with sending some emails to domains outside of our network. We fixed a reverse dns issue and it did not resolve all of the issues. We then realized that we could not connect ...