Re: What's up with emails?

On Thu, Feb 22, 2024 at 07:45:41PM +0100, Tim Düsterhus wrote: > Hi > > On 2/22/24 16:29, Alain D D Williams wrote: > > • SPF for lists.php.net is "v=spf1 a mx a:osu1php.osuosl.org. ip4:45.112.84.5 > > ip6:2a02:cb43:8000::1102" > > Change to "v=spf1 a mx -all" > > > > •• If you make the MX change that I suggest then the > > following are redundant: ip4:45.112.84.5 ip6:2a02:cb43:8000::1102 > > I disagree with that. An MX is the receiver for inbound mail. It does not > follow that emails are sent out via the MX. Removing the explicit listing of > the IP addresses will just cause accidents in the future, if the MX no > longer happens to also send email. If the setup changes and the MX no longer send email then the SPF record can be updated. For now it is a quick way of saying a:php-smtp4.php.net. > If anything the 'a' within the SPF record could be removed, because that's > the HTTP box on DigitalOcean. "a" allows lists.php.net. to send email for the domain. I do not know if it does but could easily believe that administrative/error/... type messages come from there. Regards -- Alain Williams Linux/GNU Consultant - Mail systems, Web sites, Networking, Programmer, IT Lecturer. +44 (0) 787 668 0256 https://www.phcomp.co.uk/ Parliament Hill Computers. Registration Information: https://www.phcomp.co.uk/Contact.html #include <std_disclaimer.h>