The tables on this page describe some of the many features supported by IMC's members in their software and services. The tables are presented in a variety of formats in order to give the best view on a variety of web browsers.
The first table is the legend to the features listed in the tables. After that, there is a Java applet that allows you to keep the row and column headings on your screen as you scroll around the chart. (The applet is about 100K.) That is followed by a standard HTML table that may not fit on your screen, particularly if you are not using small fonts. The last two tables list the same information, first by IMC member company, then by feature.
For more information on the standards listed in this chart, please see the IMC mail standards pages.
| SMTP server | A server for sending and receiving mail using the SMTP protocol |
| IMAP client | Client that uses the IMAP protocol |
| IMAP server | Server that runs the IMAP protocol |
| POP3 client | Client that uses the POP3 protocol; this might also be a web-based client |
| POP3 server | Server that runs the POP3 protocol |
| Internet mail services | Outsourced mail sending and receiving services |
| Web browser interface | POP3 or IMAP server with an HTTP-based interface |
| Mailing lists | Software or services for maintaining mailing lists |
| Spam prevention | Software tools that reduce the amount of spam received by users |
| Content checking for static content | Software that filters incoming mail for words and images |
| Content checking for viruses | Software that filters incoming mail for viruses, trojan horses, and other active content that might be malicious |
| S/MIME agent | Client or server that uses S/MIME for security |
| SMTP over TLS | Secures SMTP with TLS (RFC 2487) |
| POP or IMAP over TLS | Secures POP and/or IMAP with TLS (RFC 2595) |
| SMTP authentication | Client authentication to SMTP server (RFC 2554) |
| PGP agent | Client or server that uses PGP for security |
| Proprietary message security | Client or server that uses a proprietary security protocol |
| Fax/voice over email | Client that can send or receive fax or voice messages using standards-based protocols |
| LDAP Directory | Client that can interact with LDAP servers for addressing mail |
| Mail "appliances" | Turnkey hardware that embodies email clients or servers |
| Web administrative interface | Can administer an SMTP/POP/IMAP server from a remote web client |
| vCard or vCalendar agent | Clients that use vCard or vCalendar for addresses and event management |
| SMTP server | IMAP client | IMAP server | POP3 client | POP3 server | Internet mail services | Web browser interface | Mailing lists | Spam prevention | Content checking for static content | Content checking for viruses | S/MIME agent | SMTP over TLS | POP or IMAP over TLS | SMTP authentication | PGP agent | Proprietary message security | Fax/voice over email | LDAP Directory | Mail "appliances" | Web administrative interface | vCard or vCalendar agent | |
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| Company | Features |
| ACI Worldwide | IMAP client, IMAP server, POP3 client, POP3 server, S/MIME agent, SMTP authentication, PGP agent, LDAP Directory |
| Alt-N | SMTP server, IMAP server, POP3 client, POP3 server, Web browser interface, Mailing lists, Spam prevention, Content checking for static content, Content checking for viruses, SMTP authentication, Fax/voice over email, LDAP Directory, Web administrative interface |
| America Online | SMTP server, IMAP client, IMAP server, Internet mail services, Web browser interface, Mailing lists, Spam prevention, Content checking for static content, Content checking for viruses, SMTP over TLS, POP or IMAP over TLS, SMTP authentication, Mail "appliances" |
| Authentica | Proprietary message security, LDAP Directory |
| Brightmail | Internet mail services, Spam prevention, Content checking for static content, Content checking for viruses |
| Comverse | SMTP server, IMAP client, IMAP server, POP3 server, Web browser interface, Mailing lists, Spam prevention, Content checking for static content, SMTP over TLS, POP or IMAP over TLS, SMTP authentication, Fax/voice over email, LDAP Directory, Web administrative interface |
| Cyrusoft | IMAP client, POP3 client, Web browser interface, Spam prevention, Content checking for static content, SMTP over TLS, POP or IMAP over TLS, SMTP authentication, PGP agent, LDAP Directory |
| IBM/Lotus | SMTP server, IMAP client, IMAP server, POP3 client, POP3 server, Web browser interface, Spam prevention, Content checking for static content, S/MIME agent, Proprietary message security, Fax/voice over email, LDAP Directory, vCard or vCalendar agent |
| iPlanet | SMTP server, IMAP client, IMAP server, POP3 client, POP3 server, Web browser interface, Mailing lists, Spam prevention, Content checking for static content, SMTP over TLS, POP or IMAP over TLS, SMTP authentication, Fax/voice over email, LDAP Directory, Mail "appliances" |
| Microsoft | SMTP server, IMAP client, IMAP server, POP3 client, POP3 server, Internet mail services, Web browser interface, Spam prevention, Content checking for static content, S/MIME agent, SMTP over TLS, SMTP authentication, LDAP Directory, vCard or vCalendar agent |
| Netscape | IMAP client, POP3 client, Internet mail services, Mailing lists, Spam prevention, SMTP over TLS, POP or IMAP over TLS, SMTP authentication, LDAP Directory, vCard or vCalendar agent |
| Nokia | IMAP client, POP3 client, SMTP over TLS, POP or IMAP over TLS, Mail "appliances", vCard or vCalendar agent |
| Novell | SMTP server, IMAP server, POP3 server, Internet mail services, Web browser interface, Mailing lists, Spam prevention, Content checking for static content, S/MIME agent, SMTP over TLS, POP or IMAP over TLS, SMTP authentication, LDAP Directory, Web administrative interface |
| Openwave | SMTP server, IMAP server, POP3 client, POP3 server, Internet mail services, Web browser interface, Mailing lists, Spam prevention, Content checking for static content, SMTP authentication, PGP agent, Fax/voice over email, LDAP Directory, Web administrative interface |
| Qualcomm | SMTP server, IMAP client, IMAP server, POP3 client, POP3 server, Internet mail services, Mailing lists, Content checking for static content, S/MIME agent, POP or IMAP over TLS, SMTP authentication, PGP agent, Fax/voice over email, LDAP Directory, Mail "appliances" |
| Rockliffe | SMTP server, IMAP client, IMAP server, POP3 client, POP3 server, Internet mail services, Web browser interface, Mailing lists, Spam prevention, Content checking for static content, SMTP authentication, LDAP Directory, Web administrative interface |
| Sendmail Inc. | SMTP server, IMAP server, POP3 server, Web browser interface, Mailing lists, Spam prevention, Content checking for static content, Content checking for viruses, SMTP over TLS, SMTP authentication, Web administrative interface |
| Symbian | IMAP client, POP3 client, SMTP over TLS, POP or IMAP over TLS, Mail "appliances", vCard or vCalendar agent |
| Terrace Technologies | SMTP server, IMAP server, POP3 server, Internet mail services, Web browser interface, Spam prevention, Content checking for static content, Content checking for viruses, S/MIME agent, SMTP authentication, Fax/voice over email, LDAP Directory, Web administrative interface, vCard or vCalendar agent |
| Thruport | SMTP server, IMAP server, POP3 client, POP3 server, Internet mail services, Web browser interface, Mailing lists, Spam prevention, Content checking for static content, Content checking for viruses, Mail "appliances", Web administrative interface |
| XandMail | IMAP client, POP3 client, Web browser interface, Mailing lists, SMTP authentication, Proprietary message security, LDAP Directory, vCard or vCalendar agent |
| ZixCorp | POP3 client, Proprietary message security |
| Feature | Companies |
| SMTP server A server for sending and receiving mail using the SMTP protocol | Alt-N |
| IMAP client Client that uses the IMAP protocol | ACI Worldwide |
| IMAP server Server that runs the IMAP protocol | ACI Worldwide |
| POP3 client Client that uses the POP3 protocol; this might also be a web-based client | ACI Worldwide |
| POP3 server Server that runs the POP3 protocol | ACI Worldwide |
| Internet mail services Outsourced mail sending and receiving services | America Online |
| Web browser interface POP3 or IMAP server with an HTTP-based interface | Alt-N |
| Mailing lists Software or services for maintaining mailing lists | Alt-N |
| Spam prevention Software tools that reduce the amount of spam received by users | Alt-N |
| Content checking for static content Software that filters incoming mail for words and images | Alt-N |
| Content checking for viruses Software that filters incoming mail for viruses, trojan horses, and other active content that might be malicious | Alt-N |
| S/MIME agent Client or server that uses S/MIME for security | ACI Worldwide |
| SMTP over TLS Secures SMTP with TLS (RFC 2487) | America Online |
| POP or IMAP over TLS Secures POP and/or IMAP with TLS (RFC 2595) | America Online |
| SMTP authentication Client authentication to SMTP server (RFC 2554) | ACI Worldwide |
| PGP agent Client or server that uses PGP for security | ACI Worldwide |
| Proprietary message security Client or server that uses a proprietary security protocol | Authentica |
| Fax/voice over email Client that can send or receive fax or voice messages using standards-based protocols | Alt-N |
| LDAP Directory Client that can interact with LDAP servers for addressing mail | ACI Worldwide |
| Mail "appliances" Turnkey hardware that embodies email clients or servers | America Online |
| Web administrative interface Can administer an SMTP/POP/IMAP server from a remote web client | Alt-N |
| vCard or vCalendar agent Clients that use vCard or vCalendar for addresses and event management | IBM/Lotus |
If you have questions about the tables or about IMC, please feel free to contact Paul Hoffman, IMC's director, at phoffman@imc.org.