Summary Push notifications not working after setting up mattermost “Notifications cannot be received from this server” My settings are set to “Use TPNS connect to send notification”… I don’t see why it is not working Steps to reproduce Followed the below guide to install mattermost on my Synol…

Hey @bryanyuchen , Can you start a shell in your Mattermost application container (using portainer if you have that or docker exec -ti <mattermostcontainerid> and try to run a curl in there to the configured TPNS server in your system console? You can see the configured TPNS server in your System …

Same setup, also having issues with push and smtp external connections. I’m able to connect normally via web and native apps.

Hi @zanderisrael and welcome to the Mattermost forums! Are you able to connect to the push proxy and externel a-mail server from within your container? Can you run the commands and post the output?

It seems like there was an issue with your server, it started working without any changes on my part.

Good to hear that it’s working again for you, it would still be interesting to know what push server you’ve configured in your application to know where I can start looking at.

[image] Alexander Griesser: TPNS Thank you Alex. Using the docker version of mattermost with nginx as the reverse proxy, it seems this setting that you mention was missing/not enabled and was showing the red/warning on mobile app. System Console → Environment → Push Notification Server Aft…

Push Notification Issue

Troubleshooting

best-luck (Senior Engineer) February 4, 2026, 8:39am 9

Hi!

It still shows the same error on my end even if I configured everything. I setup the push notification server on the same server and put the url as localhost.

I would appreciate really if you can help me.

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Push Notification Issue

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