Am 14.02.2011 15:21, schrieb Noel Jones: > 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 > i had the relayhost enclosed in brackets. So if it is in brackets does this mean that only my server will do the mx lookup (not the one set as relayhost)? If this is true then it would be sure that there is a misconfiguration on recipients mail server.
- Georg
