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luketb · #1 31st March 2007, 23:59

Hello

I cannot seem to get my postfix to accept incoming mail. I can send fine but I cannot receive. I cannot find any errors in 'maillog' or in 'messages'. Here is an output from postconf -n

alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
allow_percent_hack = no
append_dot_mydomain = no
best_mx_transport = local
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/libexec/postfix
debug_peer_level = 2
html_directory = no
ignore_mx_lookup_error = yes
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
mydestination = $myhostname, localhost.$mydomain
mydomain = example.com
myhostname = maillist.example.com
mynetworks_style = subnet
myorigin = maillist.example.com
newaliases_path = /usr/bin/newaliases.postfix
readme_directory = /usr/share/doc/postfix-2.2.2/README_FILES
relay_domains = $mydestination, /etc/postfix/relay-domains
relayhost = exchangeserver
sample_directory = /usr/share/doc/postfix-2.2.2/samples
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
unknown_local_recipient_reject_code = 550

This server will relay through an exchange server, but like i said I can send OK and I know that other mail servers are trying to send to this system because it will generate error if there is no MTA running when I attempt to send mail to this system.

Any advice on where to start troubleshooting this would be great.

Thanks!

edge · #2 1st April 2007, 09:27

Sending mail is really never a problem. It's as you can see receiving.

Your problem could be many, but my guess is that it's a DNS MX record problem.

Test your DNS at www.dnsreport.com (enter the URL without www in the DNS report box), and let us know the error's that you get.

Please note than many ISP's are also blocking mail ports, forcing people to use the ISP's mailservers! This could also be your case.

luketb · #3 1st April 2007, 18:07

This is just in a testing stage and is being run on an internal network. I will take a look at DNS but I have setup the appropriate A and MX records.

falko · #4 1st April 2007, 20:00

What's in your mail log when you try to send a mail to your server?

ryan_vanks · #5 15th April 2007, 20:31

Quote:

Originally Posted by edge

Sending mail is really never a problem. It's as you can see receiving.

Your problem could be many, but my guess is that it's a DNS MX record problem.

Test your DNS at www.dnsreport.com (enter the URL without www in the DNS report box), and let us know the error's that you get.

Please note than many ISP's are also blocking mail ports, forcing people to use the ISP's mailservers! This could also be your case.

I'm experiencing he same problem I cannot send mail localy but I can't send mails to people outside my domain (yahoo, hotmail ...) I followed your instructiions and Those are the errors I have on my DNS REPORT:

Missing (stealth) nameservers FAIL

Missing nameservers 2 FAIL

Stealth NS record leakage FAIL

Reverse DNS entries for MX records FAIL

Connect to mail servers FAIL

What do I do from here. I'm using FEDORA and POSTFIX

Thanks