i am using postfix(SMTP :25 ) and Dovecot(IMAPS: 993) ports with Squirelmail as a web client on Fedora core 8 ,
from Last 2 days i am getting problem after changing my dsl Router from Aztech to Linksys
wAG200G) .our organization mail server is unable to receive mail from other domains like yahoo,gmail etc.but whiten a orgnaiztion we can send or receive mails easily .but we can send mail to these servers. i am tried to telnet 25 its giving connectivinty when i connect to 993 it connected but on command prompt it shows nothing only blank screen.
i have also check mail log.by
#tail -f /var/log/maillog
when i cmd> telnet mailserverxxxx 993 on other machine with Public ip and simultaniously i am watching log it dosn't show me any connectivity of client but when i disconncted its show
Jun 29 09:58:15 mail dovecot: imap-login: Disconnected: rip=::ffff:xxx.xx.63.1x, lip=::ffff:xxx.xx.63.1x, TLS handshake
[root@mail ~]# netstat -antp | grep 993
tcp 0 0 xxx.xx.xx.xx:39932 xxx.xx.xx.xx:80 TIME _WAIT -
tcp 0 0 :::993 :::* LIST EN 1226/dovecot
tcp 0 0 :::22 :::* LIST EN 1993/sshd
i can't find problem is where...... there is no firewall rule disturbing my connectivity as i have flush all iptables rules temporarily .i have also disable DSL Router Firewall.
Last day when i checking all these thing i have also receive one mail from gmail but when i again resend then yet one i can't receive mail.
Please do helpful for me to solve this issue as our whole organization work is pending....