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# imap_uid

imap_uid -- This function returns the UID for the given message sequence number

## Description

`int imap_uid`(int imap_stream, int msgno);

This function returns the UID for the given message sequence number. An UID is an unique identifier that will not change over time while a message sequence number may change whenever the content of the mailbox changes. This function is the inverse of imap_msgno().

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