Tuesday, April 20, 2004, 4:54:10 PM, you wrote: > Well, it says why pretty clearly:
> 553-5.7.1 {mx027} Your host's IP address does not resolve.
Unfortunately, GMX gives a permanent error (553) even for temporary
DNS lookup failures. This is not good, but unrelated to Konstantin's
problem, where the host has clearly no rDNS.