Forum Discussion
Email to SMS via @tmomail.net Not Working
As of Sept 11 my alarm systems stopped sending me notifications via email to sms utilizing NUMBER@tmomail.net. After some troubleshooting we have concluded that the email system is failing:
Could not deliver message to the following recipient(s):
Failed Recipient: NUMBER@tmomail.net
Reason: Remote host said: 452 4.1.0 server temporarily unavailable AUP#MXRT
Is anyone else experiencing this issue? Any idea how to fix it? How to escalate it? We will be missing security/fire/medical alerts!
Según this answer, use of certain words in the message can trigger SPAM-filtering (which this looks like).
In that answer, @HeavenM , Community Manager, says:
… Are you sending these messages from your personal email address or from an automated email service? Does the email that you are sending from include words like admin, info, alert, test, contactus, or sales? (This is not a complete list of words in the email address that are filtered but gives you an idea.) The tmomail.net message route is not designed for ANY business messages …
Asimismo, esta página defines "Consumer" vs "Non-Consumer" messages. It seems backwards, but "Consumer" messages are the ones people send to themselves or their friends, like right from your phone. "Non-Consumer" messages are the ones businesses send, such as when you get an authentication code from your bank or a reminder from your scouting organization, etc - anything that's sending for a business or organizational purpose. "Non-Consumer" messages have to be set up with TMO or a messaging service.
Beyond that, regular tmomail.net messages are supposed to work as long as they don’t meet the SPAM criteria.
Según this answer, use of certain words in the message can trigger SPAM-filtering (which this looks like).
In that answer, @HeavenM , Community Manager, says:
… Are you sending these messages from your personal email address or from an automated email service? Does the email that you are sending from include words like admin, info, alert, test, contactus, or sales? (This is not a complete list of words in the email address that are filtered but gives you an idea.) The tmomail.net message route is not designed for ANY business messages …
Asimismo, esta página defines "Consumer" vs "Non-Consumer" messages. It seems backwards, but "Consumer" messages are the ones people send to themselves or their friends, like right from your phone. "Non-Consumer" messages are the ones businesses send, such as when you get an authentication code from your bank or a reminder from your scouting organization, etc - anything that's sending for a business or organizational purpose. "Non-Consumer" messages have to be set up with TMO or a messaging service.
Beyond that, regular tmomail.net messages are supposed to work as long as they don’t meet the SPAM criteria.
My home security system sends my T Mobile phone text messages, via its gmail account to <MyPhoneNbr>@tmomail.net, to warn of intrusions. The security system's SMTP configuration is below
This has failed since Sept 14, 2023 (error 550 5.1.1), around Oct 2nd the error changed to 452 4.1.0.
I have logged into the "From email:" gmail account and manually sent a simple test message (Subject: "Test"; Body "Test", no attachments), to <MyPhoneNbr>@tmomail.net and its delivery failed as well. So SPAM does not appear to be the issue.
Another thread said that the tmomail.net system was archaic and to find another way to contact people. However, the only published way to send text messages is via tmomail.net.
Hopefully someone from T Mobile will resolve this, as many health related services rely upon text messages to contact their clients.
@TooOld dijo:
I have logged into the "From email:" gmail account and manually sent a simple test message (Subject: "Test"; Body "Test", no attachments), to <MyPhoneNbr>@tmomail.net and its delivery failed as well. So SPAM does not appear to be the issue.
Anything sent from a mail account to the tmomail.net address goes through TMO's SPAM filters. If you get a failed delivery message, you will see AUP#<something> in the failure message. AUP stands for “Acceptable Use Policy” - which means it was SPAM-filtered.
Also, TMO's 3rd-party SPAM-filtering service decides when and if a particular mail service is blocked. So, one day it might be gmail, the next it might be icloud, or anything else. And, the reasons vary: maybe something in the text, something in the header, too many messages being sent from a particular service (total, not just the ones you're sending to yourself), or whatever else they have configured.
I've been working with this for on-call messages from work for over 5 years. I'll fix something to avoid the filters, then it'll stop working again. There used to be a great TMO person who would help me determine what was happening. However, they replied to my last message ("server temporarily unavailable", "AUP#MXRT") that they were "leaving due to severance", so they can't help anymore. 😞
I totally empathize with your frustration as I have no other method for receiving on-call messages (unless I buy myself an actual pager, and my company has no plans to pay for such service).
I’ve looked into messaging services that can do this as explained in TMO’s Non-Consumer information, and they're HUGELY expensive. The cheapest versions use random numbers, which doesn't help with your and my situations. We'd have to pay for a "vanity" number, so you and I get notified correctly of our messages, and that's even more expensive.
Sigh…
I have the same issue. I noticed time-sensitive notifications were not being delivered yesterday.
I sent multiple test messages to my number@tmomail.net, and none were delivered. Test messages were cc'd to a normal email account, and those were all delivered quickly.
Today I found two of the messages were delivered as text messages, approximately 16 hours after they were sent initially.
No errors are reported when sending to tmomail.net.
I'm getting error from tmo server 550.5.1.1. It's a tmo server side error code. I'm trying to send SMS from gmail to my tmo mesage address in the format of xxxxxxxxxx@tmomail.net
It was working until a couple months ago and now both my wifes and mie phone both stopped receiving email generated sms to tmomail.net address . Has T-Mobile chaged email sms to tmomail.net configuation for a security update or added any changes? If so, what is missing steps to ensure the email → SMS conversion → T-Mobile Text Message communication?
anyone have any lucky?
I noticed it doesnt work when sending from a personal gmail account.
However, it does work when sending from a business google account.
