theonlyholle (720311) writes "Finding out if a certain email address is able to receive email securely with TLS based encryption has always been a bit of a hassle, as you had to check every single MX manually. So I wrote a little web tool for myself and some colleagues, which is now open to the general public. Just enter an email address (the left part really doesn't matter, it's just so it's more end-user friendly) and the tool will tell you which MXs accept email for the domain and if they support TLS. Of course you still need to be sure that you support it on your end as well... try it at http://www.ismymailsecure.com/" Link to Original Source
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