Is there anybody from Yahoo (or Oath) who can contact me off-list? We recently bought a new IP range (116.202.0.0/15) and now that we've started allocating IPs from it, I'm getting reports from customers that Yahoo is permanently deferring all emails from those IPs.
For example: 553 5.7.2 [TSS09] All messages from 116.203.0.x will be permanently deferred; Retrying will NOT succeed. See https://help.yahoo.com/kb/postmaster/SLN3436.html I've also seen [TSS11]. I'm assuming some part, or even all, of that range has been placed on an internal blacklist due to the previous owner. Kind regards Bastiaan van den Berg --------------------- Hetzner Online GmbH _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
