Hi Peter,
On 05.04.2020 10:03, Peter Müller wrote:
... In that particular case, however, your message probably contained a link to libpng[.]org, which resolves to 216.105.38.10, which has been blacklisted due to malware distribution at 2019-06-15. ...
ARGL! I thought about something like that, but didn't check closely enough. *sigh*
I'll try again with a modified URL.
Thanks for looking at this!
Best, Matthias