2019 July 18
Updated the WP Mail SMTP plug-in to version 1.5.2. This time it took them five days to fix the bungles in their last attempt. This one fixes a problem with Gmail authentication which might have affected us, but didn't appear to. I sent a test message and it was transmitted and received normally. Committed the WP Mail SMTP plug-in version 1.5.2 update (Build 336) and published on GitHub. Automatic deletions of database backups older than 5 days are working properly.