Commit is blocked due to "Policy violation: Spam detected..."

Hi,

I fear I was too busy for our mailing system - again:

The fifth commit is blocked:

***SNIP*** root@Devel: /home/matz/ipfire-2.x # git send-email --annotate -1 /tmp/CCuZhk3NPC/0001-libpng-Update-to-1.6.37.patch Password for 'smtp://mfischer@submissions.ipfire.org:465': 5.7.1 Rejected due to policy violation: Spam detected. Refer to https://wiki.ipfire.org/postmaster for further information. ***SNAP***

Could "someone" please take a look at his...

Thanks in advance...

Best, Matthias