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Unable to send an email to Gmail: IPv6 sending guidelines regarding PTR records

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5 Χρόνια 5 Μήνες πριν #58 από infogate

Unable to send an email to Gmail: IPv6 sending guidelines regarding PTR records δημιουργήθηκε από infogate

You see the following error

"Unable to send an email to Gmail: Our system has detected that this message does not meet IPv6 sending guidelines regarding PTR records"

Resolution

Workaround for Linux
Postfix can be configured to use only IPv4 addresses:

Connect to a Plesk server via SSH.

Find out which protocols are currently enabled with the command:

# postconf inet_protocols
inet_protocols = all

If the output is the same, open /etc/postfix/main.cf in a text editor (for example, "vi" editor) and replace inet_protocols=all with inet_protocols=ipv4:

# grep 'inet_protocols' /etc/postfix/main.cf
inet_protocols = ipv4
#inet_protocols = all

Restart Postfix:

# service postfix restart

Ensure that the configuration is updated:

# postconf inet_protocols
inet_protocols = ipv4

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