How To Fix postfix delayed mail delivery
Date posted : 31/05/2019
In this article, we’re going to explain about resolving the delayed mail deliveries.
Postfix is a free and open-source mail transfer agent (MTA) that routes and delivers electronic mail.
For instance, we’ve faced issues where mails from our server to gmail was received successfully. However mails to any other domains received after an hour delay.
Its because there is no value set for slow_destination_rate_delay in postfix configuration. So we need to set it as 1s in main.cf file
Solution:
Edit /etc/postfix/main.cf and add below line
slow_destination_rate_delay = 1s
Save the file and restart postfix
/etc/init.d/postfix restart
Now you should be able to receive mails immediately.
Note:
If you are recieving mails at spambox, please make sure that you have proper SPF and rDNS records are setup for your source server.
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