Messages account blocked for alleged spam

On your iPhone, go to Settings > [name on top], and scroll to the bottom to see the list of devices that are logged into your account. They can be removed from there. It there are any devices that you remove from there, then follow up by changing your Password, so they cannot sign in again.

Change your Apple Account password - Apple Support

MacUserMDM wrote:

I’m not looking for an answer here as to what happened, I’m looking to provide visibility to Apple on an issue.

That won't work here on this site made up of users just like you. Is it possible you are sharing your Apple Account with someone else? Messages can be marked as spam by anyone you send them to and it may even be a possibility that instead of Deleting the message, they are marking them as Junk and Deleting. Of course Apple will not tell you who is marking your messages as Junk as that would be a privacy concern for another user.

Someone could have hacked your Apple ID and used it to send spam: If you think your Apple ID has been compromised - Apple Support

MacUserMDM wrote:

I’m not looking for an answer here as to what happened, I’m looking to provide visibility to Apple on an issue. They won’t provide any information on what/when I could have sent some offending message, if there is one at all. I send maybe 5 messages a day. These are to my wife, kids, and parents. To my knowledge, there’s not a way for them to mark a message as spam when we communicate on a consistent basis. I haven’t sent a message to a new person in I don’t know how long. Apple told me, if I don’t some mystery action again, I’ll be permanently banned.

Apple needs to be aware that this policy impacts people. If I am doing something they don’t like, tell me what it is so I can curb the behavior.

Apple doesn't read here in this user-to-user support forum for feedback or suggestions. You can let them know your thoughts here:

Product Feedback - Apple

Apple NEVER blocks text accounts; at most they will put suspicious messages in the unknown user folder.

It is the RECIPIENT’s provider that is blocking you. And that can be because a recipient of your text marked your message as spam, or that you sent the identical message to a number of people.

Lawrence Finch wrote:

Apple NEVER blocks text accounts; at most they will put suspicious messages in the unknown user folder.

It is the RECIPIENT’s provider that is blocking you. And that can be because a recipient of your text marked your message as spam, or that you sent the identical message to a number of people.

I believe the poster is saying that their own account has been blocked and they are unable to send messages. There are a fair number of threads about this issue. And people generally report that Apple will not give the information on why.

Without knowing whether your contacts are perceiving your messages as spam, or whether one or more of your contacts are intentionally mis-reporting your messages as spam, or whether there is some other issue or bug arising here, nobody here can determine.

I had this happen to me the other day. Wouldn’t let me send iMessages or factime people from my number.