On Nov 18, 2011, at 10:26 AM, Tim Dunphy wrote: > Thank you Wietse, > > I appreciate your reply. Here's what I've found. > > From the problem host: > > [monitor03:myuser:~]$telnet alt4.gmail-smtp-in.l.google.com > Trying 74.125.39.26... > telnet: connect to address 74.125.39.26: Connection refused > > From the EC2 instance: > > [root@puppet ~]# telnet alt4.gmail-smtp-in.l.google.com 25 > Trying 74.125.43.27... > Connected to alt4.gmail-smtp-in.l.google.com (74.125.43.27). > Escape character is '^]'. > 220 mx.google.com ESMTP uh9si876412bkb.108 > HELO puppet > 250 mx.google.com at your service > > > So I think I understand your point that this is not a matter of correcting a > configuration error in postfix, but rather it seems that port 25 outbound is > blocked on this network. > > > Thanks, > TIm
greetings most likely correct you will find that many internet provider block outbound smtp on port 25 unless you use their relay/domain info. I know I do. -j > > > > > ----- Original Message ----- > From: "Wietse Venema" <wie...@porcupine.org> > To: "Postfix users" <postfix-users@postfix.org> > Sent: Friday, November 18, 2011 8:33:29 AM > Subject: Re: mail defered on local network > > Tim Dunphy: >> [monitor03:root:/etc/postfix]#telnet localhost 25 > ... >> [root@cloud postfix]# telnet localhost 25 > > The problem is with DELIVERING mail not receiving it. > > Therefore, try to telnet to the DESTINATION, not the Postfix MTA. > > Wietse
