Richard Williams Posted June 12, 2018 Share Posted June 12, 2018 Hi, We have a security incident at the moment with Hornbill whereby the Hornbill service is sending data in to Exchange across the Internet using POP3 (Port 110) but is not using an encrypted (TLS) connection. As a result, Usernames and Passwords are being sent in clear text across the Internet to our Exchange environment. We have identified the cause and we would like to switch on TLS for POP3 connections ASAP – however, can you please confirm with Hornbill that they are able to communicate using POP3 with TLS before we do so? Link to comment Share on other sites More sharing options...
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