I normally use Pegasus Mail (pmail.com) as my email application. Suddenly from midday 03rd Feb I am getting the following sequence on sending:
Connection established to 220.127.116.11
0049 554 Connection rejected due to poor reputation
0021 EHLO [192.168.0.12]
Webmail (through Virgin Mail) works fine. So does Outlook Express. The SMTP I am using is shaw.cg.shawcable.net
I haven't changed anything on any of these applications. POP3 works fine for more than one email provider.