Push notifications stopped working on mobile

Hi, I’m using Mattermost self-hosted version for about 2 years already

Today, around 12h ago, my push notifications on mobile devices stopped working and I can’t understand why is it happened

Settings of the push-server it is, sorry that it’s in russian, but I think you got everything here, it’s totally default settings

Here’s an error from main mattermost container, I’m using docker-compose

{"timestamp":"2025-05-14 16:45:57.591 +03:00","level":"error","msg":"Failed to send to push proxy","caller":"app/notification_push.go:194","logSource":"notifications","type":"push","status":"not_sent","reason":"push_proxy_send_error","ack_id":"kmxuqimgwfnj3eajohcnxt96qe","push_type":"message","user_id":"eom4ud8siigginwx1zrts9n3br","device_id":"faf6c00e7a09053665d33186d82b24c680aacbf97aaf547c881182ca97115583","error":"unknown send response error"}

What we’ve tried so far:

  1. Checked the network connection to the Push Proxy
  • We successfully ran a curl command from the Mattermost container to push.mattermost.com and received a valid response.
  1. Verified the certificate
  • We tried renewing the SSL certificates, both for the Mattermost server and the Push Proxy, to ensure there were no certificate issues.
  1. Mattermost Configuration
  • Double-checked that the correct MM_SERVICESETTINGS_PUSHNOTIFICATIONSERVER URL was set in the Mattermost environment file.
  1. Reinstall the app

Despite these attempts, the issue persists, and notifications still fail to be sent with the error push_proxy_send_error. This started happening without any changes to the Mattermost configuration.

  • Has anyone experienced a similar issue where push notifications suddenly stopped working?
  • Are there any known issues with the Push Proxy in the latest versions of Mattermost?
  • Maybe some changes happened recently ?

I would appreciate any help or insights on how to resolve this issue. It’s so impornant.

Thank you in advance!

Hi,
Just wanted to chime in that I’m experiencing the same issue. I’m also using the self-hosted version of Mattermost, and push notifications to mobile devices suddenly stopped working around the same time — roughly 12 hours ago.

Nothing has changed in my server settings either. Would appreciate any updates or suggestions if anyone finds a solution.

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Just a quick update, everything is working again now. I didn’t change anything on my side, so it’s possible the issue was on mattermost push-test server (https://push-test.mattermost.com), which had been returning an error when trying to send push notifications to iOS devices.

1 Like

There had been an issue with Apple that has been resolved. https://status.mattermost.com/ tracks things like that, and might be helpful in the future.