[SOLVED]I kind of figured it out by doing some minimum amount of bank transfers, I concluded that the only needed domain in order to make push notifications work for my banking app is mtalk.google.com.
Not sure if it's totally right tho. It worked for me.
I found this post on /e/OS forum:
community.e.foundation/t/what-…
mtalk.google.com is needed by GCM (cloud messaging). For those using adblockers it was always recommended to whitelist it (not block it), otherwise one would have problems with push messaging
[OP]I'm currently using a ROM with GrapheneOS sandboxed Play Services + DNS filter with No Google list that blocks everything from Google.
But I think it's worth the trade off of whitelist just a specific domain because I really need instant push notifications from my banking app.
But since I blocked everything I think it's not reaching Google
... Show more...[SOLVED]I kind of figured it out by doing some minimum amount of bank transfers, I concluded that the only needed domain in order to make push notifications work for my banking app is mtalk.google.com.
Not sure if it's totally right tho. It worked for me.
I found this post on /e/OS forum:
community.e.foundation/t/what-…
mtalk.google.com is needed by GCM (cloud messaging). For those using adblockers it was always recommended to whitelist it (not block it), otherwise one would have problems with push messaging
[OP]I'm currently using a ROM with GrapheneOS sandboxed Play Services + DNS filter with No Google list that blocks everything from Google.
But I think it's worth the trade off of whitelist just a specific domain because I really need instant push notifications from my banking app.
But since I blocked everything I think it's not reaching Google servers to handle push notifications properly.
So if anyone could help on this I really appreciate it.
I see my bank trying to reach these domains:
- firebaselogging.googleapis.com
- firebaseinstallations.googleapis.com
- firebase-settings.crashlytics.com
(I just pause the DNS filter when I need something related to Play Services)

mtalk.google.com is needed by GCM (cloud messaging). For those using adblockers it was always recommended to whitelist it (not block it), otherwise one would have problems with push messaging.
/e/OS community
shrek_is_love
in reply to CodenameDarlen • • •*.firebase.googleapis.comand*.firebaseinstallations.googleapis.comin there, which I believe I needed to get Google Voice notifications to work.s38b35M5
in reply to shrek_is_love • • •My app required these to work
CodenameDarlen
in reply to shrek_is_love • • •I just did some tests and found out it's
mtalk.google.comfor me at least.I whitelisted this domain and then I was able to receive notifications on my bank app.
Also I allowed Notifications permission on Play Services app. But I can tell for sure the only allowed google domain was
mtalk.google.com, I checked the logs.Can you check if
mtalk.google.comis on your block lists?My case I'm not using a Google app, it's just my bank app, so it might be different? I'll do some more tests later to make sure.
EDIT:
I found this post on /e/OS forum: community.e.foundation/t/what-…
According to /e/OS support:
What are mtalk.google.com and www.googleapis.com serving for?
/e/OS communitys38b35M5
in reply to CodenameDarlen • • •shrek_is_love
in reply to CodenameDarlen • • •mtalk.google.comis in my manual whitelist as well. (Could have been for Google Voice or something else)CodenameDarlen
in reply to shrek_is_love • • •I found this post on /e/OS forum:
community.e.foundation/t/what-…
What are mtalk.google.com and www.googleapis.com serving for?
/e/OS community