6.3.2 Customizing the IMAP Connection

Here’s an example method that’s more complex:

(nnimap "imap.gmail.com"
        (nnimap-inbox "INBOX")
        (nnimap-split-methods default)
        (nnimap-expunge t)
        (nnimap-stream ssl))

nnimap-address

The address of the server, like ‘imap.gmail.com’.

nnimap-server-port

If the server uses a non-standard port, that can be specified here. A typical port would be "imap" or "imaps".

nnimap-stream

How nnimap should connect to the server. Possible values are:

undecided

This is the default, and this first tries the ssl setting, and then tries the network setting.

ssl

This uses standard TLS/SSL connections.

network

Non-encrypted and unsafe straight socket connection, but will upgrade to encrypted STARTTLS if both Emacs and the server supports it.

starttls

Encrypted STARTTLS over the normal IMAP port.

shell

If you need to tunnel via other systems to connect to the server, you can use this option, and customize nnimap-shell-program to be what you need.

plain

Non-encrypted and unsafe straight socket connection. STARTTLS will not be used even if it is available.

nnimap-authenticator

Some IMAP servers allow anonymous logins. In that case, this should be set to anonymous. If this variable isn’t set, the normal login methods will be used. If you wish to specify a specific login method to be used, you can set this variable to either login (the traditional IMAP login method), plain or cram-md5.

nnimap-expunge

If non-nil, expunge articles after deleting them. This is always done if the server supports UID EXPUNGE, but it’s not done by default on servers that doesn’t support that command.

nnimap-streaming

Virtually all IMAP server support fast streaming of data. If you have problems connecting to the server, try setting this to nil.

nnimap-fetch-partial-articles

If non-nil, fetch partial articles from the server. If set to a string, then it’s interpreted as a regexp, and parts that have matching types will be fetched. For instance, ‘"text/"’ will fetch all textual parts, while leaving the rest on the server.

nnimap-record-commands

If non-nil, record all IMAP commands in the ‘"*imap log*"’ buffer.