In case you're using the official ejabberd packages on Debian stable: They're affected by a recent CA policy change (e.g., Let's Encrypt), causing ejabberd to reject newly issued certificates and thereby breaking federation with some remote servers. Deploy this update to fix the issue:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1128568#23
You may also want to consider enabling mod_s2s_dialback to deal with remote servers that haven't been updated yet.
#ejabberd #XMPP #Jabber #Debian #LetsEncrypt
Holger Weiß
npub1cy…ma45l
2026-03-15 19:00:58 UTC
Author Public Key
npub1cyhzlzez9f7j8metsrt75n66u7dq0drm9gr84rwac650zrwzvc3qama45lSeen on
wss://relay.momostr.pinkPublished at
2026-03-15 19:00:58 UTCEvent JSON
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"created_at": 1773601258,
"kind": 1,
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"content": "In case you're using the official ejabberd packages on Debian stable: They're affected by a recent CA policy change (e.g., Let's Encrypt), causing ejabberd to reject newly issued certificates and thereby breaking federation with some remote servers. Deploy this update to fix the issue:\n\nhttps://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1128568#23\n\nYou may also want to consider enabling mod_s2s_dialback to deal with remote servers that haven't been updated yet.\n\n#ejabberd #XMPP #Jabber #Debian #LetsEncrypt",
"sig": "57e80721a319dba1bb7bfc20fbc9f8ec2e17ffeeea8697b5d682209849026deb91b436af1179faf6ec8734a6f1fc863bb282dc139ee80c2a20b868412d5a8f04"
}