Why my messages womt send but can recieve from that number

[Android Central Question]

Ok so I added someones number and I go to txt and it says ,free msg:message blocking is active.

 

[B. Diddy]

Welcome to Android Central! Contact your carrier and see if someone has placed a block on the messaging feature.

 

[Rukbat]

If you have Lifeline, or some other service that has a limited number of messages a month, you may have exceeded that number.