sending does not work

[Roland Heß]

Hi,

completely new to mutt ...
Getting mail works fine, sending not. I tried to run mutt with -d 1 and get the following message:

<E> mutt_save_confirm() Kann Nachricht nicht in POP-Mailbox schreiben.
[Can not write message to POP-Mailbox]

my muttrc says:

set smtp_url = "smtp://rol42@web.de@smtp.web.de:587"

Thanks for helping.