Since imip-agent is integrated with mail infrastructure defined by Internet standards, users can use any mail program that is capable of sending and receiving standards-based mail. However, it is recommended that MIME-capable mail programs are used in order to properly present messages produced by imip-agent. Since the MIME standards have been in existence since the 1990s, most commonly-used mail programs should work with imip-agent with few difficulties.
Meanwhile, mail clients that can understand and present calendar data are less common. The following Free Software programs have been tested with imip-agent:
|Mozilla Thunderbird (with Lightning Calendar extension)
Also known as Icedove (and Iceowl) in Debian
See RFC 5546 section 3.2.7 for details of the COUNTER scheduling method.