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Maildrop - http://www.courier-mta.org/maildrop/
A mail filter/local delivery agent with a perl-ish filtering language and maildir support. (C++) [GNU/Linux, Unix] |
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Fetchmail - http://fetchmail.berlios.de/
A mail retrieval and forwarding utility intended to be used over on-demand TCP/IP links (such as SLIP or PPP connections). [GNU/lInux, Unix] |
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Althea - http://althea.sourceforge.net/
An IMAP e-mail client for X-windows. It has support for using many servers at once and IMAP over SSL. (C++) [GNU/Linux] |
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Mailfilter - http://mailfilter.sourceforge.net/
A utility to get rid of unwanted spam mails, before downloading them from the POP3 mailbox. (C++) [GNU/Linux, Unix, Windows 9x/2000/NT] |
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Mailsync - http://mailsync.sourceforge.net/
Synchronizes a collection of mailboxes, which may be on the local filesystem or on an IMAP server. (C++) [OS Independent] |