1 c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 2 SPDX-License-Identifier: curl 3 Long: ssl 4 Help: Try SSL/TLS 5 Protocols: FTP IMAP POP3 SMTP LDAP 6 Added: 7.20.0 7 Category: tls 8 Example: --ssl pop3://example.com/ 9 See-also: ssl-reqd insecure ciphers 10 Multi: boolean 11 --- 12 Warning: this is considered an insecure option. Consider using --ssl-reqd 13 instead to be sure curl upgrades to a secure connection. 14 15 Try to use SSL/TLS for the connection. Reverts to a non-secure connection if 16 the server does not support SSL/TLS. See also --ftp-ssl-control and --ssl-reqd 17 for different levels of encryption required. 18 19 This option is handled in LDAP (added in 7.81.0). It is fully supported by the 20 OpenLDAP backend and ignored by the generic ldap backend. 21 22 Please note that a server may close the connection if the negotiation does 23 not succeed. 24 25 This option was formerly known as --ftp-ssl (added in 7.11.0). That option 26 name can still be used but might be removed in a future version. 27