I don't know if it's a bug or a feature. :)
After I sent a longer response to a customer, I only got a few lines in the ticket response thread. Here is what I sent him:
Dear xxxx,
our mailsystem is working correct, please check you configurations.
---------
To: xxx@xxxathy.net
=== Trying xxx.xxxx.ch...
=== Connected to xxx.xxxx.ch.
<- 220 xxx.xxxx.ch ESMTP ready.
-> EHLO xxx.xxxx.ch
<- 250-xxx.xxxx.ch Hello xxx.xxxx.ch
<- 250-SIZE 52428800
<- 250-PIPELINING
<- 250-STARTTLS
<- 250 HELP
-> MAIL FROM:<bes3502@xxx.xxxx.ch>
<- 250 OK
-> RCPT TO:<xxx@xxxx.net>
<- 250 Accepted
-> DATA
<- 354 Enter message, ending with "." on a line by itself
-> Date: Wed, 08 Sep 2010 08 +0200
-> To: xxx@xxxx.net
-> From: bes3502@xxx.xxxx.ch
-> Subject: test Wed, 08 Sep 2010 08 +0200
-> X-Mailer: swaks v20061116.0 jetmore.org/john/code/#swaks
->
-> This is a test mailing
->
-> .
<- 250 OK id=1OtEDe-00041g-3A
-> QUIT
<- 221 xxx.xxxx.ch closing connection
=== Connection closed with remote host.
---------
And this is what I see in the ticket thread:
Dear xxx
our mailsystem is working correct, please check you configurations.
-------------
=== Trying mx.actionpoint.ch...
=== Connected to mx.actionpoint.ch.
EHLO xxx.xxxx.ch
.
QUIT
I tested it again, and it seems, that the E-Mail was sent correctly.
And ideas?