I have a problem with my channel on DeltaChat. Suddenly, some users (2–3 out of 55) have stopped receiving messages. Removing them from the channel and re-adding them doesn’t solve the problem. I tried creating a new channel and adding them to it, and they receive messages without any issue.
What do you think? Why aren’t they receiving messages on my old channel? Is there a way to fix it?
Please give more info. Do you see a “delivery error”? Do the users have something in common, i.e. the same mail provider that could be filtering out the emails?
There is no delivery errors.
All channel users are using same chatmail relay (a self-served one).
I have (I think) the same problem, I’d posted about the underlying issue (lack of any Seens from a user) - the user was using a really old DC client on his macOS, and the newest on his Android. After updating his macOS the seen notifications started working again in our private chat, but his Seen for the broadcast channel has never recovered for me (channel owner), he never shows as having read the news.
I’ve poked around the server (my account data) and my desktop data trying to figure out (without diving into the code) where and how it’s all stored. At most I’ve been able to identify is where the group ID is stored (in the chats table next to the channel) and there’s a broadcast_secrets table with our key. I’m still trying to figure out where the subscriber list is stored etc.
Problem is, I have a suspicion it’s something wrong with the client data on his end. In theory if I can uncover some clues on where or what to look at, I can ask him to then look at the same things. It’s the “how do I debug this” problem…
Push out a new test post.
Look at the debug log of the client of both the channel owner and the subscriber with the problem around that time instant.
please notice that what you are talking about is GROUP not CHANNEL, channels in Delta Chat are “one to many” broadcasting channels, like on Telegram