I changed my droplet name so that it is the FQDN but the hostname in my SMTP banner is returning the original droplet name.
I thought this might take a while to propagate down but it’s been a few days now and still no change.
Any idea how I change the hostname returned in the SMTP banner?
These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.
edit /etc/postfix/main.cf
find the line that reads
uncomment it (remove the “#”), and change it to suit your needs, then run this: