- Plesk for Linux
Unable to send email from the server to certain recipients.
The following can be found in
CONFIG_TEXT: main postfix/smtp: connect to mx.example.com:25: Connection timed out
main postfix/smtp: BE46D121BD6: email@example.com, relay=none, delay=150, delays=0.13/0.01/150/0, dsn=4.4.1, status=deferred (connect to mx.example.com:25: Connection timed out)
Outgoing mail mode is set to Send from the specified IP addresses and IPv4 is set to 203.0.113.2 in Tools & Settings > Mail Server Settings.
Emails are successfully sent if Send from domain IP addresses is enabled in Tools & Settings > Mail Server Settings or if QMail is selected in Tools & Settings > Mail Server Settings > Installed mail server.
In Tools & Settings > IP Addresses there is a private IP address 192.0.2.2, for which a public IP address 203.0.113.2 is assigned and there is a separate IP address 203.0.113.2.
Non-routable IP address 203.0.113.2 is being used for sending emails.
Go to Tools & Settings > Mail Server Settings and switch Outgoing mail mode to internal IP address 192.0.2.2 or another IP address that is routable on this server.
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