Extensive experience on Unix and other platforms including installing and supporting SMTP, POP and IMAP servers in ISP and corporate environments on BSD, Solaris and other System V and Berkeley derived platforms.
I have extensive experience with mail server issues, including security, anti-spam and anti-relay measures, integration with CC:Mail and Microsoft Exchange, and mail service migration planning. Converted many production mail relays from sendmail or proprietary email systems to qmail. often eliminating the need for an immediate hardware upgrade.