When I send emails from my AOL address to a hotmail.co.uk address I am receiving "Undelivered Mail Returned to Sender" with the:-
host mx4.hotmail.com[65.55.92.168] said: 550 SC-001
(SNT0-MC3-F39) Unfortunately, messages from 64.12.102.137 weren't sent.
Please contact your Internet service provider since part of their network
is on our block list. You can also refer your provider to
Troubleshooting. (in reply to MAIL
FROM command)
Despite searching for circa 2 hours now I cannot find a way of sending a message to Hotmail (other than calling Microsoft by phone during office hours) or even AOL - there is loads of "stuff" on the Help pages but no way to email!
Any advice with this issue would be appreciated.