vi /etc/postfix/main.cf
service postfix restart
Categories: How-To's, Technology Tags: Email, Error, Gmail, howto, IPv4, IPv6, PostFix, Protocol, tips | No comments
PROBLEM: Email delivery to Google was failing with a “Service Unavailable” error:
Note that the network address for the destination is shown as IPv6! That is the root cause of the issue: 1. Sendmail is sending mail from the IPv6 address instead of the IPv4 address 2. Google rejects IPv6 senders without proper reverse […]
Categories: How-To's, Technology Tags: Amazon, Amazzon Linux, AWS, Delivery, DSN, Email, howto, IPv4, IPv6, Linux, make, Restart, SendMail, sendmail.cf, sendmail.mc, service, Service Unavailable, SPF, tips, Unavailable | No comments