How can I check the maillog for message deletions made via pop?

Introduction

In an effort to determine why mail has gone missing, it may be helpful to search the maillog for pop deletions.

Procedure

One way to do this is with the following command, making sure to replace name@domain.tld with your email address:

grep name@domain.tld /var/log/maillog* | grep -v "del=0" | grep del

The output would look something like this:

/var/log/maillog-20210423:May 23 01:04:19 user dovecot: pop3(name@domain.tld)<1682746><yE8VNpPCzkS+cdf5>: Disconnected: Logged out top=0/0, retr=0/0, del=7/232, size=145286042, bytes=88/5960