Is SMS getting phased out?

Why Everyone Thinks SMS Is Dying

Type "SMS is dead" into any search bar and you'll find a wall of headlines pointing to Microsoft, Google, the FBI, and every major US carrier. But look closer and the story isn't about SMS disappearing — it's about SMS being retired from one very specific job.

The narrative traces back to Microsoft's Entra ID documentation, which states plainly that "SMS and voice are no longer positioned as secure authentication methods." The retirement follows a hard timeline: passkeys become the default on September 1, 2026, SMS is retired for most users by February 1, 2027, and the phase-out extends to Global Administrators by July 1, 2027. The reason is security, not obsolescence — SMS codes are vulnerable to phishing, SIM-swap, and replay attacks.

The government piled on. In late 2024 and into 2025, the FBI and CISA urged organizations to stop relying on SMS-based MFA, calling it vulnerable to interception. Google followed suit, announcing in early 2025 that it would replace SMS codes for Gmail with QR-based login methods.

Then the carriers added fuel. Email-to-text gateways — the free bridges that let businesses send texts from an email client — are shutting down across the board:

• T-Mobile's @tmomail.net stopped delivering in late 2024
• AT&T shut down @txt.att.net on June 17, 2025
• Verizon is winding down @vtext.com toward full shutdown by March 31, 2027

Read together, these moves sound like a coordinated funeral. Read carefully, they're something else entirely: a security and infrastructure phase-out, not a channel retirement. Microsoft itself acknowledges legitimate operational SMS needs, noting that regulated industries with compliance regimes requiring out-of-band SMS can continue using telephony providers.

Meanwhile, the commercial data points the opposite direction. SMS achieves up to 98% open rates and is typically read within three minutes, converting at 2.3 times the rate of email alone. That's why GrowthPros keeps SMS in its five-minute follow-up sequence alongside AI voice and email — the channel isn't dying, the free gateway workarounds and login codes are.

The distinction matters for anyone buying leads. What's being phased out is SMS as a security credential, not SMS as a way to reach a human being who just asked about your product.

Where SMS Is Still Winning: The Follow-Up Data

While Microsoft retires SMS codes and the FBI warns against texting in authentication, the commercial numbers tell a very different story — and they explain why SMS remains a workhorse in lead follow-up. When a prospect's attention is the scarcest resource, no other channel gets read faster.

The performance gap between SMS and email is stark. Text messages achieve up to 98% open rates and are typically read within three minutes, while email open rates sit at a modest 20–32%, with only about a quarter opened within the first hour, according to SMS marketing research. That visibility compounds: 40% of mobile users check text notifications within five minutes, and 19% check within one minute.

Speed matters because timing determines whether a lead ever enters your pipeline. Research on lead response timing shows that contacting a lead within five minutes makes contact up to 100x more likely than waiting thirty minutes — a benchmark that underpins modern speed-to-lead playbooks, which recommend instant self-scheduling, a live call, then SMS for hot leads (2026 speed-to-lead benchmarks).

Conversion data reinforces the case:

• SMS messages convert at 2.3 times the rate of email campaigns alone, per Omnisend research.
• Multi-channel subscribers receiving SMS and email together are 2.4 times more likely to purchase than single-channel recipients, according to Attentive research.
• Adding SMS on top of existing email nurturing produced a 25% increase in customer conversions for Bar None Games.

That last data point deserves a closer look. In February 2023, Bar None Games layered SMS campaigns on top of its email sequences, sending messages within an hour of receiving a new lead. According to the MarketingSherpa case study, the messages felt personal and casual to garner responses — and sometimes customers would convert to a sale directly from SMS, without even needing a demo call.

This is precisely why GrowthPros builds SMS into its AI follow-up sequence rather than treating it as optional. Every lead gets AI voice, SMS and email response within a five-minute window, because the evidence shows that layering channels — not choosing one — is what drives purchase likelihood. The Bar None Games experience mirrors what happens when SMS complements email instead of replacing it: the two channels reinforce each other, and the faster channel often closes the gap a slower one leaves open.

SMS isn't winning everywhere — authentication is clearly moving on. But for reaching buyers who check their phones within minutes, the data says it still wins where it counts.

Why Speed Makes SMS Non-Negotiable for Leads

Speed-to-lead economics make SMS non-negotiable for hot leads, and GrowthPros leverages this reality in its AI-powered follow-up system. Leads contacted within five minutes are up to 21–100× more likely to enter the sales process than those contacted after 30 minutes, a timing window where SMS outperforms other channels in visibility and response speed. This isn’t just about being fast — it’s about being seen when intent is highest.

SMS is the fastest channel a lead will actually see, with research showing it’s typically read within three minutes of delivery and achieving up to 98% open rates. In contrast, email open rates range from 20–32%, with only 23% opened within the first hour. For businesses relying on rapid lead engagement, this gap in visibility directly impacts conversion potential — especially when 78% of buyers choose the vendor that responds first. GrowthPros’ AI follow-up system ensures every lead receives SMS, voice, and email contact inside that critical five-minute window, 24/7.

• SMS messages convert at 2.3 times the rate of email campaigns alone
• Multi-channel approaches combining SMS and email drive 2.4 times higher purchase likelihood than single-channel efforts
• 40% of mobile users check text notifications within five minutes, and 19% check within one minute

These metrics confirm why SMS remains central to GrowthPros’ follow-up sequence — not despite evolving security trends, but because of its proven effectiveness in commercial lead nurturing. While SMS is being phased out for authentication due to phishing and SIM-swap risks, it retains strong value for operational use cases where speed, visibility, and direct engagement drive outcomes. GrowthPros continues to use SMS because the data shows it works: fast delivery, near-universal visibility, and measurable lift in conversion when integrated into a timely, multi-channel follow-up strategy.

How GrowthPros Uses SMS the Right Way

So SMS is getting phased out of authentication — but not out of follow-up. The same research that documents Microsoft retiring SMS logins also shows why it still converts leads at remarkable rates, and that distinction is exactly where GrowthPros' process lives.

Every lead GrowthPros delivers gets AI voice, SMS, and email follow-up inside a five-minute window, 24/7. That speed isn't arbitrary: research on lead response timing shows leads contacted within five minutes are up to 21–100× more likely to enter the sales process than those contacted after thirty minutes. SMS earns its place in that sequence because it gets read — up to 98% open rates, typically within three minutes of delivery.

But SMS is never the only channel. Attentive's research found that multi-channel subscribers are 2.4 times more likely to purchase than single-channel recipients, which is why voice leads the sequence, SMS reinforces it, and email backs everything up. The 2026 speed-to-lead benchmarks recommend the same logic: instant contact, live call, then SMS for hot leads requiring under-five-minute response.

The content of each message matters as much as the timing. When Bar None Games added SMS nurturing on top of email, conversions rose 25%. Their COO's advice, per the MarketingSherpa case study: make messages personal and action-oriented, asking questions that garner a response. GrowthPros' AI follow-up does exactly that — qualifying intent through conversational messages, not one-way blasts.

Compliance sits underneath everything. GrowthPros treats SMS as a privilege built on documented consent:

• Every lead carries a consent record — disclosure text, timestamp, IP address, and the named contacting party
• Lists are DNC-scrubbed before any outbound contact, and reactivation targets only pre-existing, opted-in relationships — never cold lists
• Opt-outs are honored immediately and permanently across SMS, voice, and email

This is the honest answer to "is SMS getting phased out?" The security case against SMS is real — Microsoft, the FBI, and CISA are right to retire it for authentication. But for consented, time-sensitive commercial follow-up, the data points the other way. SMS is being phased out where it's risky, not where it works.

Exclusive leads by niche, followed up in minutes — including the leads you already paid for. Book a 15-minute qualification call to see how the multi-channel sequence would run on your pipeline.

What to Do Next: Keep SMS, Fix the Infrastructure

The data is clear: dropping SMS for lead follow-up would be a mistake, but relying on legacy email-to-text gateways is a liability. Carriers are shutting down those gateways — AT&T closed @txt.att.net in June 2025, T-Mobile stopped delivering to @tmomail.net in late 2024, and Verizon is winding down @vtext.com by March 2027 — forcing businesses toward proper telephony integration. Research confirms SMS still achieves up to 98% open rates and is typically read within three minutes, converting at 2.3 times the rate of email alone.

• Replace email-to-text gateways with direct telephony provider integration
• Combine SMS with voice and email in a multi-channel sequence — multi-channel subscribers are 2.4 times more likely to purchase than single-channel recipients
• Personalize every message: ask questions that garner a response and keep the tone casual and action-oriented
• Audit consent records and opt-out handling across every channel before the next campaign

Bar None Games proved this approach works, adding SMS on top of existing email nurturing and seeing a 25% lift in customer conversions by making messages feel personal and asking for the reply. The same principle applies to lead follow-up: speed and channel diversity drive contact rates. Top performers don't just respond faster — they build infrastructure that delivers voice, SMS, and email within minutes, every time.

GrowthPros delivers exclusive and capped-shared leads with AI voice, SMS, and email follow-up inside a five-minute window, 24/7. Every lead carries a consent record — disclosure text, timestamp, IP, and named contacting party — and lands in your CRM with the full trail attached. Book a 15-minute qualification call to see capped, consent-recorded leads with five-minute AI follow-up.