On 26/02/2020 09.16, Dave Howorth wrote:
Thanks for the explanation. As I said I don't understand SPF. The wikipedia article just looks like gobbledygook to me.
So is there anything that either Paul, or the list mailserver, or for that matter my ISP's mailserver is doing 'wrong' somehow that could be improved to prevent Paul's mails getting bounced?
Or is it just a poorly designed protection scheme?
The later :-p Basically Paul mail setup is configured on his DNS (so, no headers to delete) to tell others (like your ISP) to reject any mail claiming to come from him (From header), that doesn't actually get posted by his IP. As list mail is coming from SUSE IP, it gets correctly rejected. So, he either disables SPF, or uses a different mail address. -- Cheers / Saludos, Carlos E. R. (from oS Leap 15.0 x86_64 (Minas Tirith))