Horde Mailer unsecure?

Yes, I guess this is true, just because it is very old.

But this is running at background very often, unreachable from outside, but then maybe blocked from very motivated IT security. :)

In my case it is the Nextcloud webmail client and I want to share how to change the Message-Id Header to prevent this!


Go to the file:



to line 35 and change it to e.g.:


    public static function create($prefix = 'MoliMail')