STARTTLS is an extension to plain text based Internet protocols that allows them to use an encrypted TLS or SSL connection to a backend server. STARTTLS for IMAP, POP3 and SMTP provides for encrypted authentication between email clients and email servers that support TSL or SSL.
Progress, Telerik, Ipswitch, Chef, Kemp, Flowmon, MarkLogic, Semaphore and certain product names used herein are trademarks or registered trademarks of Progress Software Corporation and/or one of its subsidiaries or affiliates in the U.S. and/or other countries. See
Trademarks for appropriate markings.