Anti-virus software conflicts with MailSite Troubleshooting errors caused by certain anti-virus software packages.

The first step in troubleshooting MailSite is to ensure that the anti-virus software installed is not conflicting with any of the Mailsite services. You can verify this by disabling the anti-virus software. Some conflicts can be attributed to the default installation behavior of the anti-virus product.

Mcaffee WEBSHIELD
If McAffee Webshield is installed on the mail server, it will scan for viruses in incoming email before forwarding it to the MailSite SMTP server. Because mail in this case is being received by MailSite from the local host, it may cause issues with MailSite's anti-spam and anti-relay policies.

Mcaffee NETSHIELD
McAffee Netshield automatic scanning of outgoing messages can conflict with the Mailsite Express client to display properly (or at all) after login. Be sure to disable outgoing file scanning.