Postgrey Alternatives

Use this program to "Unspam" your mailbox(es).

Open Source

The free Anti-Spam-Filter Spamihilator removes more than 98% of spam mails before they even get into your inbox.

The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.

Visit website paid $19.5 / Monthly (Pro)

Spam Reader is a free anti-spam add-on for Microsoft Outlook.

Over 8 million people use MailWasher as their spam filter

Professional e-mail security free for private use: With Spamfence.

Save time by adding powerful spam filtering to the e-mail client on your Mac.

SPAMfighter and Microsoft have built the strongest and most effective anti spam filter for Outlook, Windows Live Mail, Outlook Express & Thunderbird

Newton is a fully featured mail client available for Android, iOS, macOS and Windows.

Protects your company by blocking spam and virus before they reach your network.

paid Free Trial €4.9 / Monthly (1 domain with 100 MB traffic)

POPFile classifies email into categories you define.

Most people find spam e-mails the biggest nuisance on the Internet.

Best of Hacker News in your inbox every Friday.

Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.

Open Source