Hi golinux,

I'm using Roundcube Webmail 1.2.3 on devuan ascii, with the following
plugins:
filesystem_attachments 1.0 GPLv3+
jqueryui 1.10.4 GPLv3+

Everything was installed from the regular repos.

I don't have any of those strange http links in these headers. I also
think this is most likely caused by a plugin of your roundcube mail
client.

Regards,
Daniel Abrecht