IMAP Fields
| Protocol Field | pcre Writing Method | Field Type | Field Description | | :---------------------- | :----------- | :------- | ------------------------------------- | | imap4_tag | TAG | Character string | Tag of the request or response command | | imap4_tag_len | / | Length | Length of the tag of the request or response command | | imap4_mailbox | MAILBOX | Character string | Mailbox name | | imap4_mailbox_len | / | Length | Mailbox name length | | imap4_login_usrname | USRNAME | Character string | User login name | | imap4_login_usrname_len | / | Length | User login name length | | imap4_auth_base64 | AUTH_BASE64 | Character string | Response from the client in the authentication session | | imap4_auth_base64_len | / | Length | Length of the response from the client in the authentication session | | imap4_auth_mechanism | AUTH_MECH | Character string | Authentication mechanism name | | imap4_fetch_msgitem | FETCH_MSG | Character string | Mail data item returned in response to the FETCH command request | | imap4_fetch_msgitem_len | / | Length | Length of the mail data item returned in response to the FETCH command request | | imap4_search_condition | SRCH_COND | Character string | Search criteria of the SEARCH command |