InBox Filter - Detect and delete unwanted messages on multiple e-mail accounts.

Inbox100 - Protect yourself from spam by permitting only e-mails from your approved list into your inbox.

InBoxer Anti-Spam Filter for Outlook - Filter out spam and junk mail in Outlook 2000, 2002, and XP.

InboxShield Anti-Spam Solution - Scan your incoming e-mail for spam.

Innovatools Email Control - Win back the control over your e-mail and stop spam and viruses.

Invisible Inbox - Protect your POP3 e-mail account from incoming spam messages.

IPS Spam Filter - Remove spam e-mails from your mailbox and observe them safely.

Junksweep - Use artificial intelligence to protect your Microsoft Outlook from spam and junk mail.

KnockKnock - Eliminate unsolicited e-mails from your system.

LashBack - Identify new spam and automatically block it before it reaches your inbox.