Jimmy Kim explains why AT&T and Verizon flag SMS as spam: too many links, spam-like wording, high send frequency, and high complaint rates. Fix it by cleaning your contact list, reducing frequency to unengaged users, and verifying your SMS platform's DNS records and technical setup.
Chapters
The thing about SMS messaging getting flagged for spam by like AT&T, Verizon is generally because, hey, you got too many links. You shouldn't be sending more than one link anyway. Your message might be spammy in content. You're triggering through content words. There's always frequency because of that. And then there's the last one, which is always the hardest one to really see, which is complaint rates are high.
Exactly. So check your SMS platform's deliverability reports. If a chunk of your messages are getting filtered, you just need to adjust your content. So deliverability audit comes down to a couple of things. Clean your list, segment your sends, reduce the frequency to unengaged Engage folks and really making sure that you're checking out your technical setup, right? Those are kind of some of the DNS records that Jimmy had alluded to before. And remember, deliverability isn't just solely this technical stuff. It's also behavioral. So Gmail and the other ISPs, they watch how people engage and respond to your emails. If someone deletes it without opening it, you're probably going to be toast.