I am getting the following message when I send my outgoing mails:

Unable to connect SMTP server:mail.shawhosting.ca Reason:Authentication failed:535 5.7.0 authentication failed

  I do not know why suddenly my authentication isn't working. I have had my shaw hosted mail forwarded to my zoho account for at least six months now.

I need someone to look at this as soon as possible. I have left 2 phone messages asking for help (about 6 to 7 hours ago) and posted on the forum about 5 hours ago (and it has disappeared). I then posted on the tail end of someone with a similar issue and that is "still awaiting moderation".

I seriously don't know why there is so much time lapsing on this issue.

~Davida