fetch-field

Arguments: message part info &key uid

This function is used to extract the desired information from the value returned by fetch-letter. With fetch-letter, you can retrieve a variety of information about one or more messages and fetch-field can search through that information and return a particular piece of information about a particular letter.

message is the message number (it's assumed to be a message sequence number unless uid is true, in which case it's a unique id).

part is the type of information desired. It is a string just as used in the call to fetch-letter.

info is the result fetch-letter.

See imap.htm for more information. The section Fetching a Letter is particularly relevant.

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Created 2019.8.20.