[nmh-workers] strace show # pauses/takes 5+ sec | network issue? ( not nmh )

[nmh]

I do not think this is a nmh issue, but I could use help troubleshooting it.

$ mhmail -version
mhmail -- nmh-1.7.1 built 2018-05-19 10:39:15 +0000 on epjdn.zq3q.org

I show where the strace output paused for 5+ seconds in the attachments.

So what should I be asking my vps provider?  Is this some network issue?
This happened on a fedora 30 host, and a centos 7 host (vps hosts on same 
network).

Fortunately or unfortunately the problem just went away without any action on 
my part --
started on Sat night, and fixed itself about an hour(?) ago.

--
thanks/thanks for working on nmh,
Tom
Milwaukee WI

nmh-scan-slow00
Description: nmh-scan-slow00

nmh-show-slow00
Description: nmh-show-slow00