Hi Rudi,

Thanks for the pointer! I've tried it and mail forwarding seems to work relatively reliably (we don't match all criteria on the "bulk senders" requirements list, but my mail was just forwarded, not a bulk mail)...

Also, while I sent my prior mail from my GMail account, GMail rejected my mail for a lot of recipients. Your mail was correctly delivered to all recipients, including those on GMail. So, I'm now using a different mail account to send this mail and see what happens.

I haven't found how to do ARC signing with exim4 other than recompiling the exim package with the experimental feature enabled... For our mailing lists (which is probably the biggest volume), we could probably set up Mailman for ARC signing. That would at least solve *some* of the pain.

Regards,

Erik.