c: Copyright (C) 1998 - 2022, Daniel Stenberg, , et al. SPDX-License-Identifier: curl Long: login-options Arg: Protocols: IMAP LDAP POP3 SMTP Help: Server login options Added: 7.34.0 Category: imap pop3 smtp auth Example: --login-options 'AUTH=*' imap://example.com See-also: user --- Specify the login options to use during server authentication. You can use login options to specify protocol specific options that may be used during authentication. At present only IMAP, POP3 and SMTP support login options. For more information about login options please see RFC 2384, RFC 5092 and IETF draft draft-earhart-url-smtp-00.txt If this option is used several times, the last one will be used.