This section briefly outlines the following overall functions of IMAP:
Full compliance.
The RFC states that "an IMAP4rev1 server listens on port 143." (Port 993 is used for SSL connections.) By default, that is where the GroupWise IMAP agents listen. However, GroupWise allows an administrator to change the IMAP port (and the SSL port) on which to listen, in case there is a need to run more than one IMAP agent on the same server.
Full compliance.
The initial greeting from the GroupWise IMAP agents is as follows:
S: * OK GroupWise IMAP4rev1 Server Ready
Full compliance.
Full compliance.
No data is sent unilaterally by the server.
Full compliance.
For details on subsections of 2.3, see the following:
Full compliance.
The GroupWise IMAP agents are fully compliant with the message numbers as described in the RFC. However, they are not viewable from a GroupWise client and are not accessible from other GroupWise APIs.
Full compliance.
The GroupWise IMAP agents are fully compliant with the message unique identifiers described in the RFC. Also, the mailbox unique identifier validity values returned by the GroupWise IMAP agents are in compliance with the RFC.
Full compliance.
The GroupWise IMAP agents are fully compliant with the message sequence numbers as described in the RFC.
Full compliance.
The IMAP system flags map to the following GroupWise fields:
|
\Sent |
Item Status field, Read bit (Setting this bit also sets the Opened bit. Clearing this bit does not clear the Opened bit.) |
|
\Answered |
Item Status field, Replied bit |
|
\Flagged |
Priority field, Priority High bit. NOTE:In GroupWise 2014 R2 and later, this maps to the Follow-up Flag. |
|
\Deleted |
Special Imap Item Deleted bit on the Folder Flags field (This is not the Deleted bit on the Item Status field.) |
|
\Draft |
Box Type field, Draft bit |
|
\Recent |
Recent is a calculation determined by the Delivered Date being newer than the last time the mailbox was selected with SELECT or the last NOOP. This calculation holds true for each session, even if multiple sessions are simultaneously active on the same mailbox. |
The GroupWise IMAP agents support client-defined keywords. Only permanent keywords are supported. GroupWise defines one such keyword, $ImapSent, which (when used with the APPEND command) sets the Box Type field of the message to Sent. (This is known in GroupWise as a sent item.)
Full compliance.
The IMAP internal date is the same as the GroupWise Delivered Date field.
Full compliance.
GroupWise messages do not always store data as a MIME. Because of this, the first time the MIME is generated, a size is calculated. The calculated size is stored with the message for future reference to improve performance when retrieving this attribute.
If the MIME representation is generated again, the calculated size is updated (if any changes to the MIME generation code have been made).
Full compliance.
Full compliance.
Full compliance.