Since some month GMX changed to SSL/STARTTLS when accessing the mail account (free mail). Retrieving emails from the POP3 server runs flawless. Sending emails worked, since some weeks ago it stopped because of an authetication error when logging in to the smtp server. After a few days all went normal. Now I have the same issue again and this time persistent. I tried to change settings in Clawsmail to get around the problem, but regardless which setting I chose, none works. The most common and so critical error is: * Konto: 'XXXXXX@gmx.de': Verbinde mit SMTP-Server: mail.gmx.net:587... [22:52:44] SMTP< 220 gmx.com (mrgmx102) Nemesis ESMTP Service ready [22:52:44] ESMTP> EHLO gmx.net [22:52:44] ESMTP< 250-gmx.com Hello gmx.net [88.76.173.36] [22:52:44] ESMTP< 250-SIZE 69920427 [22:52:44] ESMTP< 250-AUTH LOGIN PLAIN [22:52:44] ESMTP< 250 STARTTLS [22:52:44] ESMTP> STARTTLS [22:52:44] ESMTP< 220 OK [22:52:44] ESMTP> EHLO gmx.net [22:52:44] ESMTP< 250-gmx.com Hello gmx.net [88.76.173.36] [22:52:44] ESMTP< 250-SIZE 69920427 [22:52:44] ESMTP< 250 AUTH LOGIN PLAIN [22:52:44] ESMTP> AUTH LOGIN [22:52:44] ESMTP< 334 VXNlcm5hbWU6 [22:52:44] ESMTP> [USERID] [22:52:44] ESMTP< 334 UGFzc3dvcmQ6 [22:52:44] ESMTP> [PASSWORD] [22:52:44] ESMTP< 535 Authentication credentials invalid ** Fehler bei der Anmeldung *** Authentifizierung schlug fehl: 535 Authentication credentials invalid I have no idea whether this is a bug in Clawsmail or a bug at GMX. However, GMX support is too busy or not replying. Thanks for looking into the problem.
This looks like an issue with finding the correct settings rather than a bug and therefore would be much better suited to the mailing list rather than a bug report. See http://www.claws-mail.org/MLs.php What settings have you tried? Have you looked here: https://hilfe.gmx.net/mailprogramme/pop3.html Have you tried with the latest release of Claws Mail? 3.9.2 was released over a year ago.
(In reply to comment #1) > This looks like an issue with finding the correct settings rather than a bug > and therefore would be much better suited to the mailing list rather than a > bug report. See http://www.claws-mail.org/MLs.php > > What settings have you tried? Have you looked here: > https://hilfe.gmx.net/mailprogramme/pop3.html > > Have you tried with the latest release of Claws Mail? 3.9.2 was released > over a year ago. Well, maybe. I will check further and comment. I am relying on the versions which are offered by the Salix team (my preferred distro). I will however ask them for an update to a newer version of clawsmail. GMX help was so far of no help...but I got in touch with a Salix user using a GMX account as well. You are probably right re Mailing list. I did not consider that option, sorry.