We’ve been dealing with some server-side issues of late, and Adam Engst takes you behind the curtains to apologize for an email delivery failure and explain how we blocked an onslaught of spambot-created accounts.

It took us a few weeks to figure out that iCloud Mail servers had decided they didn’t like something about TidBITS. That’s now resolved, and we think we’ve reset all iCloud subscribers who bounced as a result.