Hello. Am 14.08.2016 um 13:10 schrieb Mark Constable: > Because of arguments like this, and that I do not even want to offer > non-SSL options, I routinely disable ports 143 and 587 and only use > ports 993 and 465 for authenticated user mail... > https://www.agwa.name/blog/post/starttls_considered_harmful
It's really simple with courier to block non-secured authentication on port 25 and port 587. So that's wiping away all concerns against STARTTLS on port 587, isn't it? I would never ever close port 587, it's the only port to which all of our customers have access to. - Bernd
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