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The qmail-maxrcpth.patch patch allows you to set a limit on how many r
The qmail-maxrcpth.patch patch allows you to set a limit on how many recipients are specified for any one email message. RFC 2821 section 4.5.3.1 says that an MTA MUST allow at least 100 recipients for each message, but MAY elect not to allow any more than that. I choose not to, since this is one of the favourite tricks of the spammer.
To set the limit, create a /var/qmail/control/maxrcpt file which contains the maximum number of recipients you wish to allow.
This project is a C++ library which allows incorporating DKIM into an existing MTA or other application. It provides full support for signing, verifying, and SSP. It is compliant with RFC 4871.
Sieve is a mail filtering language standardized as RFC 3028 / RFC 5228 and its extensions. libSieve provides a simple, clean API for parsing and executing Sieve scripts. Code is on GitHub: http://github.com/sodabrew/libsieve
RFC 2425 defines a MIME Content-Type for Directory Information. This library contains necessary methods to parse information blocks arranged in such a manner.
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Quick Mail Project is Mail Server with Web mail. The project is independed platform support designed Using Java ,C, PHP ,MySQL database . Its support RFC SMTP protocol , RFC Internet Message, Multi domains, forward, block, spam bulk and a lot more.
KQ-Mail is a modular SMTP mail server using kernel queues to communicate between modules.
In it\'s basic mode it is ideal to sit between the internet and your primary mail server to provide a buffer and or a SMTP RFC enforcement engine
zpop3d is an RFC 1939-compliant POP3 server. It features virtual domains support, POP before SMTP, and secure mailbox updates.
It runs through tcpserver, xinetd, or the like.
InfinyMail is an ODMR (RFC 2645) implementation, consisting of client and server. The client request its mail to the provider (ISP's MTA) via ODMR protocol.