On 2/14/2011 7:51 AM, Georg Schönweger wrote:
thx for your help. i can't check the DNS query on our relayhost smtp
server. On our local Server the MX is current. My conclusion is that a)
our external relayhost smtp has wrong MX entry or b) recipient
mailserver is misconfigured. I will switch off now the relayhost since
our ip isn't listet on any blacklist i checked so far..
Other question: I have a local postfix server with a dynamich IP which
sometimes is blacklisted. Does it help in this case to use a relayhost
which isn't blacklistet? Because the final-recipient's mailserver could
see/check that the original mailserver is blacklistet.
- Georg
You'll never get reliable delivery sending from a dynamic IP.
You'll need to use your ISP's relayhost.
Generally you should disable MX lookups on the relayhost by
enclosing the server name in [] brackets.
relayhost = [smtp.example.com]
-- Noel Jones
