What did I do??

[KendallCam01]

I asked a question and had it taken down...I understand that. Went back and resubmitted my question and got an answer. When I tried to reply back to thank the person who answered it I got a screen that said my profile was blocked...When I tried to ask what warranted it, I got this at the bottom of the autoreply:
550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [Link Removed]

What happened?? (Sorry if this isn't in the right spot)

 

[KendallCam01]

Forgot to ask if this is a permanent ban...hope it isn't...

 

[Neemobeer]

A 5.4.1 NDR is generated when the email domain you are sending email has your email domain blocked. You'd have to contact technical support of the domain you are sending to.