9 times out of ten, this is related to your dns in your dmz resolving to the external address of your email server (or, not having a different view in your DNS for your DMZ...) , thus it tries to send to that address to which the firewall wont let him (cannot send to the external address from within the DMZ)... I put a local DNS in the servers sometimes. Other times i use a view on the main DNS server.
El mar, 27-01-2004 a las 10:19, Guillermo Villasana Cardoza escribió: > Hello everyone, I have the following problem. > > I have been trying to send email to domain1.com from my domain, but it > seems that it can't reach the server. > > when I do a > dig domain1.com mx > I get: > > domain1.com MX 10 server1.domain1.com > domain1.com MX 10 server2.domain1.com > domain1.com MX 20 server3.domain1.com > domain1.com MX 30 server4.domain1.com > > and if I telnet to port 25 on server1.domain1.com I get an answer. > > I am usging qmail-1.03 + vpopmail5.3.11 + qmailadmin-1.0.6 + ezmlm-0.53 > + courier-imap-1.6 + clamav-0.65 + spamassassin-2.60 + qmail-scanner 1.20 > > on a Redhat advanced Server 2.1 > > Is there a way I can determine why this email is not being sent? > > To other sites the server is delivering with no problem > > Thank you very much for all your help > >
