mail.flabell.com is a remote one. my server is mail.xprivatecams.com netstat -tap Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 *:mysql *:* LISTEN 2452/mysqld tcp 0 0 localhost.localdomain:20207 *:* LISTEN 2776/opendkim tcp 0 0 *:sunrpc *:* LISTEN 1940/portmap tcp 0 0 *:ndmp *:* LISTEN 2879/perl tcp 0 0 *:ftp *:* LISTEN 2565/proftpd: (acce tcp 0 0 xprivatecams.com:domain *:* LISTEN 1911/named tcp 0 0 localhost.localdomai:domain *:* LISTEN 1911/named tcp 0 0 localhost.localdomain:ipp *:* LISTEN 2331/cupsd tcp 0 0 *:iclcnet_svinfo *:* LISTEN 1977/rpc.statd tcp 0 0 *:smtp *:* LISTEN 24997/master tcp 0 0 localhost.localdomain:rndc *:* LISTEN 1911/named tcp 0 0 *:imaps *:* LISTEN 2484/dovecot tcp 0 0 *op3s *:* LISTEN 2484/dovecot tcp 0 0 *op3 *:* LISTEN 2484/dovecot tcp 0 0 *:imap *:* LISTEN 2484/dovecot tcp 0 0 *:webcache *:* LISTEN 2595/httpd tcp 0 0 *:http *:* LISTEN 2595/httpd tcp 0 0 *:tproxy *:* LISTEN 2595/httpd tcp 0 0 *:ssh *:* LISTEN 2317/sshd tcp 0 0 localhost6.localdomain:rndc *:* LISTEN 1911/named tcp 0 0 *:https *:* LISTEN 2595/httpd tcp 0 1776 xprivatecams.com:ssh 79-112-67-012.iasi.fi:47680 ESTABLISHED 7694/0 [root@xprivatecams ~]# iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination thanks
How I can verify if I have a filter on (or behind) my server? My ISP doesn't have, I don't have a firewall, but a router can make me problems with port 25 ?
Do you have this problem only when you send to mail.flabell.com, or does it happen with every remote email account?
I can't send emails at all. I can send only to users from my server, ex: from [email protected] to [email protected] -> this is working I can receive mails from outside (yahoo, gmail, etc)
Do you have a dynamic IP address? Almost all dynamic IP addresses are blacklisted automatically. In this case, you must set up relaying: http://www.howtoforge.com/postfix_relaying_through_another_mailserver