# SMS messages not being received from PMM **URL:** \ **Category:** PMM 2.x\ **Created:** [July 11, 2022, 10:48pm UTC](https://forums.percona.com/t/sms-messages-not-being-received-from-pmm/16520 "2022-07-11T22:48:52Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Mikem](https://avatars.discourse-cdn.com/v4/letter/m/41988e/32.png) [@Mikem](https://forums.percona.com/u/Mikem)\ **Post date:** [July 11, 2022, 10:48pm UTC](https://forums.percona.com/t/sms-messages-not-being-received-from-pmm/16520/1 "2022-07-11T22:48:52Z")
Configured a Communication channel in PMM and can successfully send emails but sms texts are not being sent/received. Using tmobile so format is phone#@tmomail.net. Any advice on how to troubleshoot this? ---
**Author:** ![matthewb](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/matthewb/32/34_2.png) [@matthewb](https://forums.percona.com/u/matthewb)\ **Post date:** [July 12, 2022, 12:30am UTC](https://forums.percona.com/t/sms-messages-not-being-received-from-pmm/16520/2 "2022-07-12T00:30:16Z")
Can you send to that email address from your normal email client? If that doesn’t work, then you know the issue is with tmomail and not PMM. ---
**Author:** ![Mikem](https://avatars.discourse-cdn.com/v4/letter/m/41988e/32.png) [@Mikem](https://forums.percona.com/u/Mikem)\ **Post date:** [July 12, 2022, 12:50pm UTC](https://forums.percona.com/t/sms-messages-not-being-received-from-pmm/16520/3 "2022-07-12T12:50:52Z")
Yes, I can successfully send a message to [tmomail.net](http://tmomail.net) via Outlook. An alert message to a regular email address (gmail) works as well, just not to sms. I will try using sendmail on the PMM host machine. ---
**Author:** ![steve.hoffman](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/steve.hoffman/32/66_2.png) [@steve.hoffman](https://forums.percona.com/u/steve.hoffman)\ **Post date:** [July 12, 2022, 1:47pm UTC](https://forums.percona.com/t/sms-messages-not-being-received-from-pmm/16520/4 "2022-07-12T13:47:25Z")
I think there are smtp logs in the /srv/logs/alertmanager.log that might give some indication. The best you will see is if the first smtp server accepted/rejected the message so if it was accepted (250 OK) then the issue will be with one of the upstream SMTP transactions. If rejected it could be for a few reasons like DKIM signing, SPF or a few other spam prevention mechanism. ---
**Author:** ![Mikem](https://avatars.discourse-cdn.com/v4/letter/m/41988e/32.png) [@Mikem](https://forums.percona.com/u/Mikem)\ **Post date:** [July 12, 2022, 5:39pm UTC](https://forums.percona.com/t/sms-messages-not-being-received-from-pmm/16520/5 "2022-07-12T17:39:28Z")
I am seeing the following in the /var/log/mail.log ‘sender rejected AUP#DNS’ This feels like Tmobile is rejecting this based on origin( my PMM host). ---
**Author:** ![steve.hoffman](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/steve.hoffman/32/66_2.png) [@steve.hoffman](https://forums.percona.com/u/steve.hoffman)\ **Post date:** [July 12, 2022, 5:45pm UTC](https://forums.percona.com/t/sms-messages-not-being-received-from-pmm/16520/6 "2022-07-12T17:45:21Z")
Yep, could be reverse dns not set or coming from a dynamic range IP address. I’d recommend you look at relaying mail from the PMM server to your ISPs smtp server (you’ll need to auth to the smtp server and use a from domain that the ISP agrees with). [Here’s](https://www.percona.com/blog/2020/07/07/enable-email-sending-in-percona-monitoring-and-management-2/) a blog on how to use O365 or gmail as a more legitimate email relay. ---
**Author:** ![Dwellon](https://avatars.discourse-cdn.com/v4/letter/d/3be4f8/32.png) [@Dwellon](https://forums.percona.com/u/Dwellon)\ **Post date:** [October 3, 2025, 3:46pm UTC](https://forums.percona.com/t/sms-messages-not-being-received-from-pmm/16520/7 "2025-10-03T15:46:09Z")
I had the same issue and found that double-checking the phone number format and making sure alerts were sent via the right channel in Notification Policies fixed it. ---
**Author:** ![Dwellon](https://avatars.discourse-cdn.com/v4/letter/d/3be4f8/32.png) [@Dwellon](https://forums.percona.com/u/Dwellon)\ **Post date:** [October 14, 2025, 4:12pm UTC](https://forums.percona.com/t/sms-messages-not-being-received-from-pmm/16520/8 "2025-10-14T16:12:48Z")
Had the same issue once — emails worked fine but SMS never came through. Turned out my format wasn’t fully supported. My voip provider setup had a guide that helped me test different formats and check delivery logs. Try sending a test to your own number and check for any bounce-back messages.