On 2021-07-19 19:27, Ken Johnson via mailop wrote:
An email I tried to send there returned with:
<anonym...@sbcglobal.net>: host
al-ip4-mx-vip2.prodigy.net[144.160.235.144]
said: 550 5.7.1 Connections not accepted from servers without a
valid
sender domain.alph752 Fix reverse DNS for 173.228.157.53 (in reply
to MAIL FROM command)
Been like that for well over a year. Easy to fix with Postfix. I got
tired of telling customers to send it again and it will be accepted.
smtp_reply_filter = pcre:/usr/local/etc/postfix/maps/smtp-reply-filter
# Busted DNS server at SBCGlobal/Bellsouth/Prodidy and friends
/^550 \d.\d.\d (Connections not accepted from servers without a valid
sender domain.*)/ 450 4.7.1 $1
Second try hits a different server in their cluster.
John Capo
Ex Tuffmail.com
_______________________________________________
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop
