IT, SRE & DevOps on-call paging
Nagios · PRTG · UptimeRobot
T-Mobile silently killed tmomail.net — no announcement, no bounce, no error. Healthcare reminders, server alerts, alarm panels: all silently dropped. Change one address — keep your workflow. ~30 min to migrate.
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+15555551234@tmomail.net+15555551234@messaging.sprintpcs.com+15555551234@sendemailtotext.comOne address handles every T-Mobile / Sprint number. Your existing email rule, alert template, and on-call workflow — unchanged.
No bounces. No NDRs. No errors. Your SMTP client returns 250 OK — because the message was accepted before DNS resolution. Then T-Mobile's server simply doesn't exist anymore. Try it yourself.
Open your terminal and try it. The domain is gone from every major resolver. No A record. No MX record. No server to deliver to.
DNS resolution stopped working on or around December 14, 2024 — confirmed dead across Comcast DNS, Google DNS (8.8.8.8), Level3, and Cloudflare (1.1.1.1). Every send since has vanished.
SMTP returns 250 OK because the message was accepted before DNS lookup. The carrier's server simply doesn't exist anymore — and nothing tells you. Operators acked missed pages as "maybe they were on lunch."
T-Mobile absorbed Sprint in 2020 and consolidated the legacy gateways. @messaging.sprintpcs.com numbers failed in the same Dec 2024 window. If you still send to Sprint addresses, those are gone too.
If you sent to @tmomail.net or @messaging.sprintpcs.com since Dec 14, 2024, none of it arrived.
"The e-mail to text gateway is a legacy system that may eventually be decommissioned in the future. It is designed for low volume consumer traffic only and cannot handle a significant volume of messages."
— T-Mobile official guidance (the only line they ever gave; no shutdown announcement was made)
Same migration shape for monitoring stacks, alarm panels, voicemail-to-SMS, broadcast engineering, web-form leads, and IoT sensors. Change the destination — the system keeps doing what it always did.
Different system not listed? 15-min call — tell us what you're using →
Same email-to-SMS shape you've used for a decade — just point it at a TextBolt address instead of @tmomail.net.
In your alarm panel / monitoring tool / VoIP / web form — wherever the alert config lives — add +1XXXXXXXXXX@sendemailtotext.com as a recipient. (Or set up a forwarding rule if you can't edit the system directly.)
No code change. No SDK. No SMTP rewrite. The alert email it was already sending now also goes to a phone.
Subject + body delivered as text. Rotation? Different shift? Just change the destination address — no redeploys. Bonus: their reply lands back in your inbox.
Users start reporting inconsistent delivery on T-Mobile community forums. Some messages arrive late, some not at all. No carrier response.
tmomail.net stops resolving across all major DNS providers — Comcast, Google, Level3, Cloudflare. The domain is effectively gone. Still no announcement.
T-Mobile's only on-record line — given years before the actual shutdown — is the quote above. No press release, no customer email, no deprecation notice. They simply stopped.
Post-merger consolidation: T-Mobile absorbed Sprint in 2020 and quietly retired the Sprint email-to-text gateway in the same Dec 2024 window. Both addresses are now dead.
⚠ The hardest part: you may not know yet. There are no bounces, no NDRs, no errors. Operators ack'd missed pages as "maybe they were on lunch." Every send to @tmomail.net since Dec 14, 2024 has vanished — silently, with no signal back to the sender.
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Since Feb 1, 2025, AT&T, T-Mobile, and Verizon block every A2P SMS that isn't registered with The Campaign Registry. Penalties run up to $10,000 per content violation. We handle it.
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"Our on-call paging was hitting vtext and tmomail. Both started silent-failing in 2024 — we didn't catch it for weeks because there were no bounces. Switched, and every alert hits."
"Honeywell Total Connect was emailing our alarm alerts to T-Mobile phones via tmomail.net. We thought the panels were quiet. They weren't — the alerts were just vanishing. Migrated in an afternoon."
"Our dental practice runs on appointment reminders. When tmomail silently stopped, our no-show rate doubled before we figured out why. Migrated — back to baseline in 2 days."
1 message credit = 1 SMS segment (~155 chars). Most alert messages = 1 credit. 7-day free trial on all plans.
Small alerting setups.
Standard on-call team.
Higher-volume / critical alerts.
Sending 5,000+ messages a month? Enterprise pricing →·Toll-free add-on $45/year
@tmomail.net in late 2024 — no press release, no customer email, no deprecation notice. The only on-record statement is their long-standing line: "The e-mail to text gateway is a legacy system that may eventually be decommissioned in the future. It is designed for low volume consumer traffic only and cannot handle a significant volume of messages." That line predates the actual shutdown by years.ping tmomail.net. It returns "Ping request could not find host tmomail.net". DNS resolution fails across Comcast, Google DNS (8.8.8.8), Level3, and Cloudflare (1.1.1.1). The domain stopped resolving around December 14, 2024 and hasn't come back.@messaging.sprintpcs.com failed in the same Dec 2024 window. The same TextBolt address-swap covers both — you don't need a separate setup.+15555551234@tmomail.net to +15555551234@sendemailtotext.com. No SDK, no API, no SMTP rewrite. Works with alarm panels (Honeywell Total Connect, Alarm.com, ADT, DSC, Bosch), monitoring tools (PagerDuty, Opsgenie, Nagios, PRTG), VoIP voicemail-to-email, web forms, and IoT sensors.@tmomail.net was one-way. With TextBolt the recipient's text-back lands as a threaded email reply in the sender's inbox. On-call engineers can text-acknowledge from their phone and it shows in your alerting system as a normal email reply.Find-and-replace @tmomail.net with @sendemailtotext.com. Keep everything else.
Up to 98% delivery · 10DLC-compliant · Same workflow you've used for a decade