I second that, but my preference would be for a RSS feed.

Edit: they do have a RSS feed and other ways to get a daily theorem from their Resources page [1]

[1] [ http://www.theoremoftheday.org/Resources/Resources.htm ]

Would you look at that. That's good enough for me, thanks.

Though are you getting the full pdf's? I'm using Sage and a lot are linking to PDF's with "A newer version of this theorem description is now being hosted at: www.theoremoftheday.org/Theorems.html"

Also some are linking just to the home page. I'm wondering if this is just me or you're getting the same.

Oh dear. Yes, I'm getting the same "A newer version of this theorem..." PDFs.

My apologies. I should have checked that the RSS is returning valid links.

Well it is good enough, was just checking. Thanks.

You can use an RSS feed to email converter. I use Feed2imap (https://github.com/feed2imap/feed2imap/) to collect feeds from many sites and Notmuch (https://notmuchmail.org/) to sort and index the mess.