I can confirm that we drop connections from MTAs with no PTR record. -- _________________________________________________________________ L. Mark Stone, Founder
North America's Leading Zimbra VAR/BSP/Training Partner For Companies With Mission-Critical Email Needs Winner of the Zimbra Americas VAR Partner of the Year - Two Years Running! On Friday, May 29th, 2026 at 4:59 PM, Randolf Richardson, Postmaster via mailop <[email protected]> wrote: > Your /24 is not in any of our blacklists (this is good). > > I spotchecked a few IP addresses in your netblock, and it seems that > none of them have FCrDNS configured -- I'm getitng NXDOMAIN. > > I suggest checking on this because mail will be rejected by a lot of > SMTP servers if the IP addresses you're sending from aren't properly > configured with PTR records in the relevant in-addr.arpa zone. > > > Hello to all, good day! > > > > We're having issues with a DC (due to the heat wave in Europe) and > > therefore, are migrating email flows to a different one using the range in > > subject! > > > > Thank you so much in advance for applying some flexibility and technical > > "patience" if you see us blasting your way, it will be truly appreciated > > > > > > Regards, > > Carla Saldanha > > Email Deliverability @ OpenText > > > > > > > -- > Postmaster - [email protected] > Randolf Richardson, CNA - [email protected] > Inter-Corporate Computer & Network Services, Inc. > Vancouver, Beautiful British Columbia, Canada > https://www.inter-corporate.com/ > > > _______________________________________________ > mailop mailing list > [email protected] > https://list.mailop.org/listinfo/mailop > _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
