MBOX-Line: From lyndon at orthanc.ca  Mon Aug  8 17:47:27 2011
To: imap-protocol@u.washington.edu
From: Lyndon Nerenberg <lyndon@orthanc.ca>
Date: Fri Jun 8 12:34:46 2018
Subject: [Imap-protocol] Are clients pinging servers at the same time?
In-Reply-To: <4E4080F7.4060005@psaux.com>
Message-ID: <2615d8a5461062fd95f3683dea44ff7b@orthanc.ca>

> We've been doing some tuning on our IMAP servers, and I'm noticing 
> spikes on the hour and quarter-hours.  I haven't dug into the data too 
> much, but what I'm seeing suggests client requests hitting us at :00, 
> :15, :30, and :45, every hour.

I expect this is cron running fetchmail.


