Thursday, April 8, 2021

sendmail sending email slow

 sendmail sending email slow

I have a linux box, which I configured sendmail and it is working fine. But the sending email is slow.

While checking the /var/log/maillogs I saw the following 

My unqualified host name (hostname) unknown; sleeping for retry

Sendmail is expecting a FQDN to start cleanly.

You need to set the hostname like <your_hostname>.localdomain and update /etc/hosts.

/etc/hosts   your_hostname.localdomain your_hostname localhost

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