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If I configure my locally hosted SMTP server to only accept SMTPS connections (secure SMTP port 465/587), how much mail will I lose because sender(s) don't support sending on SMTPS?

Are the major mail providers fully complaint of SMTPS on 587?

slacy
  • 940

1 Answers1

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Port 587 is the submission port for clients to submit mail for delivery. Other SMTP servers won't send email to you on port 587-- they use port 25.

Evan Anderson
  • 142,957