Blocked from sending emails

[jennyanydots1964]

I am unable to send emails, they appear to be being blocked. I suspect I have been hacked in some way as also have an alert from Norton security regarding my email address on dark web. I have reset the password but to no avail and the chatbot function appears to just take me in a circle. Just need a way of resetting my account to normal working. This is the reject message . 

Message could not be sent to the following recipients: "xxxxxxx (554 - 554 5.7.1 <mjs1967@talktalk.net>: Sender address rejected: You are blocked sending mail

Thanks

[KeithFrench]

Either way, it is nothing that we on this forum can sort.

[DaveB1361]

It's more likely that  this is the "Everymail" issue. I've the exact same message even though they had submitted the form for it to be sorted out.

I under 30-40% of the calls for support are related to this. I spent 1 hr 20 min with tech support to get it sorted - and it's been escalated.

[KeithFrench]

What service do you have? If you turn the router off for a full 30 mins (or possibly overnight depending on your package), this should get a new Public IP address on the router (if it is actually that which is blocked as opposed to your email address.