1--- 2c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 3SPDX-License-Identifier: curl 4Long: ssl-reqd 5Help: Require SSL/TLS 6Protocols: FTP IMAP POP3 SMTP LDAP 7Added: 7.20.0 8Category: tls 9Multi: boolean 10See-also: 11 - ssl 12 - insecure 13Example: 14 - --ssl-reqd ftp://example.com 15--- 16 17# `--ssl-reqd` 18 19Require SSL/TLS for the connection. Terminates the connection if the transfer 20cannot be upgraded to use SSL/TLS. 21 22This option is handled in LDAP (added in 7.81.0). It is fully supported by the 23OpenLDAP backend and rejected by the generic ldap backend if explicit TLS is 24required. 25 26This option is unnecessary if you use a URL scheme that in itself implies 27immediate and implicit use of TLS, like for FTPS, IMAPS, POP3S, SMTPS and 28LDAPS. Such a transfer always fails if the TLS handshake does not work. 29 30This option was formerly known as --ftp-ssl-reqd. 31