I’ve been thinking of self hosting a mastodon (gotosocial, more specifically) + a matrix server on an old computer I have, but sometimes I might need to turn it off for 2 days or more (not to mention some energy or internet outages that might happen here)

I suppose with the mastodon part the server will properly sync and download whatever’s been missing, but I’m not entirely sure that’ll be the case with matrix. If anyone sent me a DM on there while my server was down, would it get through after it was back up?

  • @[email protected]English
    51•22 hours ago

    Took a look at the specification, this is what I found:

    For federated servers performing delivery to a third party server, delivery SHOULD be performed asynchronously, and SHOULD additionally retry delivery to recipients if it fails due to network error.

    So they should retry. Note that should is not the same as must. So there is no obligation. There is no timeline in the spec about for how long or how often retries should be done. The wording says network error.

    My interpretation: the spec leaves a lot of room for implementations to differ. Network problems don’t normally last for days though. I’d guess that if your server is down for 5 minutes, you’ll still receive most or everything you’d normally receive. I wouldn’t trust on that if your server is offline for more than a day.