On 02/23/2011 11:56 AM, lst_ho...@kwsoft.de wrote:
Zitat von Ralf Hildebrandt <ralf.hildebra...@charite.de>:
* Richard Smits <r.sm...@tudelft.nl>:
Hello,
We have a problem in SMTP communication with some external
mailservers. I will explain.
If i do a telnet to port 25 on a remote server, I get no greeting
message, it just waits. I suppose this is some greeting delay for
anti spam.
It comes after 40s!
It's Sendmail...
Maybe some Spam-Attack got them down ;-)
Well, from our university computers i do not get a greeting, but from an
external server i do get a greeting.
I'm thinking about a firewall issue here ...
But if anyone has more ideas ...
Greetings .. Richard
