• Thunderbird

    Mozilla Thunderbird lets you retrieve, organize, secure, and customize your email.

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    Thunderbird on Mac

  • Zimbra Collaboration Suite - Open Source Edition

    Zimbra is a client and server platform for messaging and collaboration.

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    Zimbra Collaboration Suite - Open Source Edition screenshot

  • SeaMonkey

    Mozilla SeaMonkey is an all-in-one internet application suite that includes an Internet...

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    SeaMonkey screenshot

  • Claws Mail

    Claws Mail is a GTK+-based, lightweight, fast e-mail client and newsreader.

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    Claws Mail screenshot

  • Spicebird

    Spicebird is a collaboration client that provides integrated access to email, contacts,...

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    Spicebird screenshot

  • Sylpheed

    Sylpheed is a simple, lightweight but full-featured, easy-to-use e-mail client.

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    Sylpheed screenshot

  • Magic Mail Monitor 3

    Magic Mail Monitor (MMM) is a free POP3 mail monitor that supports multiple accounts.

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    Magic Mail Monitor 3 screenshot