Hello Steve,
It looked like you sent "CRLF.CRLF" at the end of the first message, gmx.net
replied with "250 2.6.0 Message accepted {mp024}CRLF" and then you continued
with "CRLFMAIL FROM:[email protected]", etc...
I found the problem! Your question about the additional CRLF brought me to
check what linebreaks I'm using. And I found that all my lines are ending with
LF only! Interestingly the mailserver never complained about for a single
email. As soon as I change to CRLF after every line it works out of the box
with simple SMTP and STARTTLS.
Sorry for bothering you about this stupid misstake.
Best,
Volker
-------------------------------------------------------------------
List admin: http://cool.haxx.se/list/listinfo/curl-library
Etiquette: http://curl.haxx.se/mail/etiquette.html