mailman not relaying email to external address
- by gozzilli
I have a setup of mailman with postfix on an ubuntu server 12.04.
My problem is that mailing list emails are not forwarded to email addresses external to my institution. However
the initial welcome email is received by everyone, internally and externally.
in fact, a simple email from command line with mail is successfully sent to anyone
after that, mailing list emails are only forwarded to internal addresses.
the domain name I'm using for the server is not that of my institution who is hosting the server.
Here is my main.cf:
myorigin = sub.myinstitution.tld
mynetworks = 127.0.0.0/8 xxx.xxx.xxx.xxx/16 # this is my institution ip range
relayhost = smtp.myinstitution.tld
inet_interfaces = loopback-only
local_transport = error:local delivery is disabled
virtual_alias_maps = hash:/etc/postfix/virtual
smtpd_recipient_restrictions = permit_mynetworks
myhostname = mywebsite.tld
mydestination = $myhostname, localhost.$mydomain, localhost
I also found these two links on serverfault and ubuntu forums, but neither of these solutions seem to do the trick for me.
Any help would be much appreciated.
