On 5/17/2021 6:27 PM, Benny Pedersen wrote:
On 2021-05-18 00:29, Noel Jones wrote:
127.0.0.1:submission inet n - n - - smtpd
[::1]:submission inet n - n - - smtpd
localhost:submission inet n - n - - smtpd
imho postfix will accept this aswell, not tested
Yes, postfix will attempt to lookup a hostname and use all the IPs
associated with it. This can cause a problem on startup if postfix
starts before the name resolution is available.
I was (perhaps rashly) assuming that the use of local addresses was
only an example.