Am 19.02.21 um 10:36 schrieb Benoît Panizzon via mailop: > Hi List > > One of our customers way desperately trying to reach company hosting > it's email services namecheaphosting.com > > eforward1.registrar-servers.com[162.255.118.51] was constantly > rejecting our customers emails as spam. We wanted to find the cause. > Maybe some weird email forwarding problem? Maybe SPF failing? The Error > message only told: 5.7.1 Spam Message Rejected. > > Namecheaphosting.com tech did not react to any of my emails trying to > address the issue. > > Now it looks like the company moved it's email services to another email > hoster. Maybe because many emails sent to them were rejected as spam? > > Is there any known issues with email 'forwarding' servies hosted @ > namecheaphosting.com? > There's very little information which could help analyze the problem. For example, what's the customer's IP address or network range, did the rejection happen at the RCPT or DATA phase of SMTP? SPF issues can only be analyzed when you know the exact IP and MAIL FROM addresses, although any reasonable mailserver that indeed rejects based on SPF data (which is a not-so-clever thing to do) should at least state so clearly in the rejection message.
Apart from that I'm wondering why a company that needs reliable e-mail would host anything e-mail related at NameCheap. Their registration and hosting business essentially provides anonymity, which makes it attractive enough for spammers that I regularly reject mails from any domain associated with them. Very few false positives yet. Cheers, Hans-Martin _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
