On 24 July 2011 11:22, Dr. Trigon <dr.trigon@surfeu.ch> wrote:

BUT the
strange thing I do not understand is; userlib.py is not able to
send emails about 50% of the tries...

Some info can be found in (at the very end):
http://toolserver.org/~drtrigon/DrTrigonBot/20110724.log

Do you have any idea when this happens? The log you mention only shows a single mailing attempt.

Could it be it only works from one of your accounts and not from another?

Have you tried sending an e-mail manually? (i.e. logging into your bot account and using Special:EmailUser, or whatever it's called). Does that work?

Best,

Merlijn