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Old 20th June 2015
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jggimi jggimi is offline
More noise than signal
Join Date: May 2008
Location: USA
Posts: 6,102

Hello, and welcome!

You mention resolvers are good, and you show us you get a reverse lookup of to localhost in 0 milliseconds, but what you didn't show is is the resolution time for, the FQDN you were sending your test mail to.

I'll guess that $ dig might not resolve so quickly.


Edited to add a second guess, which is probably better.

My second guess is that you have a mismatch between the forward DNS resolution for, and the reverse DNS resolution of localhost, and sendmail is therefore waiting for a resolution timeout.

Last edited by jggimi; 20th June 2015 at 01:46 PM. Reason: added forward/reverse resolution mismatch
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