So you got the notice from SBCglobal that you need to use SSL… and you are using popconnector and Smarthost.
http://msmvps.com/blogs/bradley/archive/2007/05/31/using-pop-connector-with-at-amp-t-yahoo.aspx
Well on the inbound we can get around that with popbeamer.com rather than the built in pop connector.
Outbound however, doesn’t look so good. Read this thread:
SBS2003 Exchange SMTP Connector and SSL w/ AT&T/SBC internet – microsoft.public.windows.server.sbs | Google Groups:
http://groups.google.com/group/microsoft.public.windows.server.sbs/browse_thread/thread/dd5c0a8ac7e3ea01/bc989e8a65bcbd34?lnk=st&q=smtp+connector+ssl+smarthost&rnum=4#bc989e8a65bcbd34
I think you will need to smarthost to something like godaddy’s servers or Exchangedefender.com
This can be handled with stunnel.