Peter Westwood

This plugin allows your users to configure a reminder to be sent to them if they haven’t posted in the last n days.
You configure the reminder on your Profile page (or the profile of another user if you have than capability)
It is in the Personal Options section and called Blogminder Threshold

PJW Blogminder

This plugin allows your users to configure a reminder to be sent to them if they haven't posted in the last n days.

David Artiss

Based on <a href="https://twitter.com/johnbillion/status/1314494422529331203" rel="nofollow ugc">an idea by John Blackbourn</a>, and mentioned by <a href="https://poststatus.com/" rel="nofollow ugc">Post Status</a>, this plugin is designed to be a reminder to those who leave draft posts unloved. And, yes, all of John’s ideas are here, with more to boot.
<ul>
<li>Send emails out on a daily or weekly schedule and at a time that you’d prefer</li>
<li>Look for draft pages as well as posts, if you like. Or just pages, if that’s what you want. We won’t judge</li>
<li>Target those drafts that were created more than a specific time period ago, or have not been updated for a while</li>
<li>Each user, who has drafts that then reminding about, will receive an email. No, they can’t unsubscribe from them</li>
<li>Each email will show the number of drafts, along with a reminder of each of them</li>
<li>Optional ability to prevent the plugin from being deactivated (allow you to avoid the temptation to do so rather than, you know, deal with the drafts)</li>
<li>Debug features to allow to verify what’s being sent</li>
</ul>
Oh, and, naturally, the code passes <a href="https://github.com/WordPress/WordPress-Coding-Standards" rel="nofollow ugc">WordPress</a> and <a href="https://github.com/Automattic/VIP-Coding-Standards" rel="nofollow ugc">WordPress VIP</a> coding standards.
I’d like to thank <a href="https://calebburks.com/" rel="nofollow ugc">Caleb Burks</a> for the feedback he provided. Also, the iconography is courtesy of the very talented <a href="https://www.fiverr.com/jankirathore" rel="nofollow ugc">Janki Rathod</a>.
Please visit the <a href="https://github.com/dartiss/draft-concluder" title="Github" rel="nofollow ugc">Github page</a> for the latest code development, planned enhancements and known issues
<h3>Mentions</h3>
Draft Concluder was mentioned in issue 421 of <a href="https://poststatus.com/newsletter/" rel="nofollow ugc">the Post Status newsletter</a> (published 16th November 2020).
It was also mentioned in <a href="https://thewpweekly.com/21/" rel="nofollow ugc">edition 21 of the WP Weekly newsletter</a> (published 23rd November 2020)

Draft Concluder

Email users that have outstanding drafts.

PJW Blogminder vs Draft Concluder