Mail Archiver X - Give It a Pass
I bought Mail Archiver X
by Moth Software at a discount from Bundlehunt a few months back and
didn't have to pay the full $49.95 they charge on their website. My
intention was to keep a regularly updated archive of my 19-year-old
Gmail account containing 155K messages. I also wanted to retrieve a
Yahoo account that I use solely for newsletters.
I knew beforehand that it's extremely easy to use Google Takeout to download an archive of your email in the universally recognized mbox format because I've done it several times. My Gmail archive weighs in at about 8GBs. You don't get a lot of choices when you request the archive, though. You get it all from the beginning of time. I wanted one to import into Eagle Filer so that I could have offline access to all the receipts, registration information and other things I'd received via email since 2005. Google Takeout did the trick.
With Mail Archiver X you can filter the emails you choose to archive, a feature I wanted. Unfortunately, despite supposedly being able to add files to an archive and cumulatively grow it over time, I was never able to get that function to work. Either the program insisted on downloading an entire archive each time it ran, taking hours, or it only downloaded files since the last time I ran it, but in a new file, so that I could not search my entire account at one time. Their tech support answered my emails, but not with helpful information. The company is in the US and the person who answered my email did not appear to a native English speaker. At present, support is no longer free. They have a $70 fee.
The other thing about the app I don't care for is its size. It's over half a GB. That's just the program, not the archives it creates. I would never recommend this program to anyone.