said by hey_moose:If you are using the free Cogeco Security Services (their licensed flavour of F-Secure) it is apparently filtering email incorrectly and that is why you are getting the 0x800CCC19 return code from your POP server.
If you installed the new security suite (Cogeco Security Services) you can resolve the mail problem with these hotfixes (use the one appropriate to your OS (32-bit or 64-bit)
For Ontario users:
www.cogeco.ca/hotfix32
www.cogeco.ca/hotfix64
For Quebec users:
www.cogeco.ca/correctif32
www.cogeco.ca/correctif64
Follow the easy procedures on the web page.
Edit: this is for the 0x800CCC19 error only