550-Verification failed

When I try to send an email from my personal host to my website email I recieve the following message (Hostname, email address and IP removed):

<me@myhost>:
000.000.000.000 does not like recipient.
Remote host said: 550-Verification failed for <my@emailaddress>
550-Unrouteable address
550 Sender verify failed
Giving up on 000.000.000.000.

When I send from hotmail it also fails to send (although hotmail's mailer demon doesn't give so much information) but it works from Yahoo.

I know there was a topic about this a year ago, but it was telling me to do a lot of things that I didn't understand or don't have permission to do.

Could someone please help?

Thanks
Robin.

 

 

 

 

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