I cannot send to any shawmail account using my Apple @me email since yesterday. I use Incredimail. I can send to any other emails (just not shawmail). I can send to shawmails through Incredimail if I send from my Hotmail email. On the same computer, I can send from Outlook to Shawmails and I can send through Incredimmail. I hope this is clear - nothing goes to shawmails from mac email. Here is error message I get back from "email@example.com" I have also tried sending to various people I know with shawmail and get the same response.
Your message cannot be delivered to the following recipients:
Recipient address: firstname.lastname@example.org
Reason: Rejection greeting returned by server.
Diagnostic code: smtp;554-idcmail.shaw.ca Your connection from 18.104.22.168 has been rejected due to poor reputation.
Remote system: dns;idcmail.shaw.ca (TCP|22.214.171.124|57953|126.96.36.199|25) (idcmail.shaw.ca)