RSS is kinda different. Subscribing is really just polling a file. ActivityPub messages are primarily sent around by first requesting a server to send messages to you. It’s a pull versus push thing.

I love RSS because it’s so simple. It actually goes a long way in the fediverse where most activity, which is read-only. Only a small percentage of users ever comment/post stuff.
@electricprism @fediverse

@jimmy90 @zeppo For sure. One major lesson off the top of my head is with ActivityPub is how errors are presented. I’ve written software to fiddle around with ActivityPub and found servers have terrible - if any - error messages. SMTP provides a bunch of standardised status codes that servers can give back to you, along with diagnostic info. In theory this is possible with apub but in practice it is not addressed at all.

@fediverse

@Vendetta9076 @InformalTrifle A system to centralise the management of mobile devices like iPhones and iPads remotely. Usually used by companies to provision devices automatically and dictate apps can be installed and have email/calenders etc. configured automatically.

See also https://it-training.apple.com/tutorials/deployment/dm005

@skullgiver Oh wow thanks! :) One program syncs my home Mastodon timeline, with all replies, to a Maildir. Dovecot serves that over IMAP. Sending involves a custom SMTP server which reads the mail message and creates a post from it.

For Mastodon it was all about converting statuses (toots? Posts?) into RFC 5322 messages. Using the status’ ID as Message-Id in the message header is handy. Mail clients do the heavy lifting of rendering threads thankfully!