> To this day, every Sunday I get e-mail via a cron job that runs
> domain-check against a set of about three dozen domains (mine,
> friends', and those of institutions I care about) to tell me which of
> them are within 90 days of expiration (and if any are past
> expiration).


FYI, here's an example report sent using said cron job, that leverages
Ben Okopnik's 'domain-check' Perl script:


---<begin>---

Date: Sun, 24 Dec 2017 07:12:02 -0800
>From root@linuxmafia.com Sun Dec 24 07: 2:02 2017
From: root <root@linuxmafia.com>
To: rick@linuxmafia.com
Subject: domain-check: Domain expiration warning (90 day cutoff)

According to 'whois', these domains will expire soon: