The new tool appears in the Message Requests section of a user's inbox and it will be possible to delete any rogue messages.
The filter is part of the micro-blogging site's plans to "improve the health of conversation" after they were criticised by governments for not doing enough to prevent the spreading of hateful comments online.
Even the man who invented Twitter's retweet button has compared it to "handing a four-year-old a loaded weapon".
Developer Chris Wetherell - who led the team to create the tool to share posts in 2009 - recently admitted that it has given the people the "power" to spread any kind of message.
He told BuzzFeed: "We put power in the hands of the people.
"But now, what if you just say it slightly differently: Oh no, we put power into the hands of the people."
His admission came after Twitter boss Jack Dorsey admitted the micro-blogging platform needs to do more to tackle online abuse.
The company supremo feels more needs to be done in order to combat abuse, conceding that putting the burden on victims to report abuse was not the way forward.
Asked what grade he would give himself for "tech responsibility", Dorsey said: "Myself? C. We've made progress but it has been scattered and not felt enough. And we've put most of the burden on the victims of abuse (that's a huge fail)."
Twitter has come under fire over recent years for its handling of various issues, including fake news and bullying.