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Thread: Mail Server Doesn't Respond to External


i have postfix / dovecot mail server set , working. been headache! but, have sent , received emails on lan, set squirrelmail check email , stuff.

however, appears server not responding external requests.

internal :
code:
active internet connections (only servers) proto recv-q send-q local address           foreign address         state       pid/program name tcp        0      0 *:smtp                  *:*                     listen      -                tcp        0      0 *:microsoft-ds          *:*                     listen      -                tcp        0      0 localhost:mysql         *:*                     listen      -
and lan system
code:
bobby@ubuntu:~$ telnet oodsong.graywalker.net 220 oodsong.graywalker.net esmtp dragon manor (ubuntu) ehlo oodsong 250-oodsong.graywalker.net 250-pipelining 250-size 10240000 250-vrfy 250-etrn 250-starttls 250-auth plain login 250-auth=plain login 250-enhancedstatuscodes 250-8bitmime 250 dsn  mail from:<myemail@yahoo.com> 250 2.1.0 ok rcpt to:<bobby@oodsong.graywalker.net> 250 2.1.5 ok data 354 end data <cr><lf>.<cr><lf> test . 250 2.0.0 ok: queued ebf361d8175 quit 221 2.0.0 bye
but, outside :
code:
graywalker@ubuntu:~$ telnet oodsong.graywalker.net 25 trying 74.171.36.69... telnet: unable connect remote host: connection refused graywalker@ubuntu:~$ telnet smtp.gmail.com 25 trying 74.125.65.109... connected gmail-smtp-msa.l.google.com. escape character '^]'. 220 mx.google.com esmtp 14sm303428lgxk.14
using webmin 1.44, @ networking ; internet services , protocols , see smtp doesn't have program assigned - if issue, why can send/received internally?

need entry in etc/hosts??

oh, - checked linux firewall , set allow traffic. router set pass smtp along mail server, modem set pass smtp traffic along router. (both set dhcp servers, router 192.xxx.xxx.x , passes out 10.x.x.x ips connected systems, including mail server).

also time out due inactivity using http://mxtoolbox.com/supertool.aspx


Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [ubuntu] Mail Server Doesn't Respond to External


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