Milter-greylist

Hello

I have set greylisting as default with a short delay time:

racl greylist default delay 30s autowhite 60d

But I sometimes see in the logs that it's delaying for much longer:

2018/11/11 16:50:39 xxxx.org [1.2.3.4]
address@domain -> me@mine
accept (ACL 86)    Delayed for 00:48:56 by milter-greylist-4.6.2
(hostname [5.6.7.8]); Sun, 11 Nov 2018 16:50:39 +0000 (GMT)

The email headers show the same thing.

That rule is the only one that has any delay set in it and I have no
global delay setting (not sure how to use one anyway). Other than
that I have "broken mta", "local", and "domains" lists whitelisted
above the greylist rule.

Whenever I test it by sending myself mail it works as expected.

Any idea what may be causing the wrong delays?

TIA

Dave
--

Nine megs for the secretaries fair,
Seven megs for the hackers scarce,
Five megs for the grads in smoky lairs,
Three megs for system source;

One disk to rule them all,
One disk to bind them,
One disk to hold the files
And in the darkness grind 'em.