Push notifications stopped working on mobile

Troubleshooting Mobile Apps
1

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

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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!

2

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.

1 Like
3

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
4

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.