How to Block SMS and Text Spam with AT&T Messaging for Free

Here’s a look at how to block spam text and SMS messages on AT&T.

So, my wife keeps getting stock tips via text on her iPhone. That would be great if A) we were day traders, B) we had asked for the stock tips in the first place and C) if the tips were any good. But none of those things are true. And all of this text message spam is really cheesing us off—especially when over-the-limit text messages are $0.10 a pop. There are a few paid services and subscriptions, both from AT&T and from third parties that help you manage text message spam, but depending on how much SMS spam you actually receive, the costs of these add-on services may actually outweigh your overages. Luckily, AT&T recently rolled out a new way for you to reduce or eliminate text messages without paying extra.

Editor Update: Recently, this feature from AT&T Wireless was discontinued and replaced with AT&T Call Protect. If any readers have any another solution, please drop it in the comments below. Thanks!

If you are tired of receiving junk text messages, follow these steps and get some relief.

Block Email Text Spam

Step One

Register for a My Messaging account with AT&T Wireless at Oddly, you won’t have a login for this page by default. First, you’ll have to click Register Now and set up a password. AT&T will text you a registration code when you’re done.

AT&T Block Text Spam

Just to clarify, this is completely different from your MyWireless login that’s associated with your AT&T iPhone app. I know… weird.

Step Two

Log in after you’ve registered at and entered your registration code.

SMS spam from AT&T

Step Three

On the next screen, you’ll have a number of Blocking Options.

text spam on iphone at&T blocking

Check Block all text messages sent to you as email and Block all multimedia messages sent to you as email. Or, you can accomplish the same thing by choosing Block from the Mobile number control drop-down menu.

get rid of iphone spam texts

Basically, what this does is stop people (or spambots) from sending you text messages via email. This can be done by sending a message to or from any email service. The downside of this is that it doesn’t cost the sender a dime, while it racks up charges/usage for you. That’s why it’s the preferred method for text spammers. They usually just enter every possible mobile number and hope to get you that way. Because it’s a complete shot in the dark, you can’t usually get any relief by “unsubscribing.” In fact, replying to mass text messages may just invite more spam, since it confirms that they have a valid AT&T mobile number.

Blocking all email text and MMS messages is the most secure method for reducing email-based text spam. You can stop the tutorial here if you’d like. But if this is the first time you’re learning about this email-to-text feature and you’d like to continue using it but don’t want to expose yourself to spammers, keep reading.

Managing Text-to-Email with AT&T

You can limit the text-to-email features on your phone without completely blocking friends and family who are sending you legitimate texts. (This is how I communicated via text with people who had cell phones before I had one myself).

Step One

Add email addresses to your Allow List. This works as a whitelist. You can receive emails as text from these addresses even if you have all email text blocked (as we did above). You can enter a full email address or just a domain. For example, if you included in your allow list, you could receive emails from anyone with a email address.

prevent text spam

Step Two

Add email addresses to your Block List. This works as a blacklist. You won’t receive any text messages from these email addresses or domains, even if you haven’t blocked all text messages.

sms text alias

Step Three (optional)

The Block and Allow Lists have their limitations. For one, it might be a pain to add people one at a time to your allow list if they changed their email or if you wanted to include someone else. Also, the block list only works if you know the email address of the sender. Spammers usually spoof an email address or make up new ones each time.

A better way to filter your incoming email-to-text message is by creating an alias. An alias is a modified address that is harder to guess. Plus, if it gets compromised, you can always change it.

To set up an alias, click Message Options on the left.

text aliases at&t

Type your alias name in the second field. For example, I’ve set it up so emails to are forwarded as texts to my cell phone.

text aliases at&t

After setting up an alias, you can go back to Message Preferences and choose it from the From address/alias drop-down menu.

text aliases at&t

For example, this makes it so texts sent from your cell phone to email addresses will have in the sent field.

text aliases at&t

Note that you’ll still be charged for all outgoing/incoming text messages as normal.

There’s one last option you should pay attention to on the Message Options screen. At the bottom, there’s a field for Number of Segments. When someone sends you an email or text message longer than 160 characters, it gets broken up into segments. You get charged for each segment as if it were a separate text message. You can set it to a number between 1 and 10, which helps avoid having a single email cost you $1.00.

text aliases at&t


So, these settings will help you reduce spam text messages by blocking one of the avenues that spammers use to reach you. It won’t, unfortunately, stop mobile-to-mobile text spam. And it won’t stop your friends or family from forwarding you unsolicited mass text messages like they were email chain letters. But it’s a start.



  1. Tig88

    February 15, 2011 at 6:39 am

    Well I don’t ever get spam in my mobile via txt msg’s but I do have a crazy Ex… Thi should work perfectly for that problem. :)

  2. receive sms online

    December 20, 2011 at 2:23 am

    We are a gaggle of volunteers and opening a brand new scheme in our community. Your web site offered us with helpful information to paintings on. You’ve performed a formidable job and our entire neighborhood will likely be grateful to you.

  3. Ben

    December 25, 2011 at 8:19 pm

    I saw this message at the bottom of the ‘Block Options’ screeen:

    Text messages sent via email can also be blocked directly from your handset. When you receive an email that you wish to block, simply reply to the email with the word “block” in the body of your message. The sender’s email address will be added to your Block List. Note: this does not apply for mobile-to-mobile text messages.

    Is there a downside to using this, and does it apply to text messages as well?

    Thanks for the info!

  4. mobile marketing company

    January 23, 2012 at 5:42 am

    Thank you, I’ve just been searching for info approximately this topic for ages and yours is the greatest I have came upon so far. But, what in regards to the conclusion? Are you positive about the supply?|What i don’t understood is in fact how you are now not really a lot more neatly-preferred than you might be now. You’re very intelligent.

  5. Darlene Johnson

    March 4, 2012 at 6:00 am

    After following these direction I started to receive text much more frequently.

  6. Martin

    February 9, 2015 at 5:02 am

    If you have an android phone, you can use an android app for blocking calls and text. One of the apps is called ‘Antinuisance’.

  7. PeterS

    September 10, 2021 at 8:39 am

    The “alias” tip is a good one.

    Also: report spam texts by forwarding them to “7726” (spells out “SPAM” on a phone keyboard). It’s free to forward to that number. You get a reply asking for the number the text came from, answer it (that reply is free as well). This builds up a database of spam texts and (perhaps) allows AT&T to take action against the spammer. This does NOT work for 5-digit “short code” senders…you’ll get a reply telling you to send “STOP”, but I believe you can block them by number on your handset.

    Handset blocking by number is probably a waste of time (except for “short code” senders). I’ve never seen spam SMS sent from the same number twice.

  8. JP

    October 10, 2021 at 6:43 am

    The links for my wireless are not valid. Try this instead.

  9. CMM

    January 31, 2022 at 8:03 am

    Unfortunately, the link to do this for even Step 1 is not working. Blocking like this should not be this difficult and require the blood of a purple dragon on the first new moon of the 200th year of the birth of mobile devices.

    • Ben Stockton

      April 25, 2022 at 4:14 am

      Hey CMM, thanks for your comment. This is an older article, so we’ll look to review and update this one soon.

  10. Dave

    April 29, 2022 at 3:08 pm

    If you call and speak with tech support, they have access to block “email to sms” and “email to mms”. You may have to have them reference “message preferences” in their database to ensure they know where to add the block. It’s not commonly asked for because not many remember that feature exists, like holding down the number 1 to speed dial voicemail.

  11. AT&T Veteran

    November 16, 2022 at 5:27 am

    The whack-a-mole method is a joke. Call AT&T, reference myCSP Article #446389 and then request escalation to tech support (they’ll have to do this anyway, but save your/their time!). A seasoned tech support rep will already know, but the article will basically tell them to go to TORCH, then MIND, then EMAIL GATEWAY to BLOCK email to text (, and will have to be done on each number.
    NOTE: I did this on my own phone MANY YEARS ago, when the original info., above, was available online, but AT&T has HIDDEN this from users, so a call is the only way to blanket stop this insanity. I had to call to get this done on my now-older kids new phones (next up, car insurance, ugh! )

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