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Allow tests ports 993, 995 and 465 (for IMAP, POP3 and SMTP ...

People want to know the email servers they use are secure, just as they do about websites. ... IMAP uses port 143, but SSL/TLS encrypted IMAP uses ...

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查詢 「SMTP SSL port」的人也找了：

  1. SMTP SSL port
    2.
  2. SMTP TLS port
    3.
  3. SMTP port number
    4.
  4. IMAP port
    5.
  5. smtp port查詢
    6.
  6. IMAP port 143
    7.
  7. Check SMTP port
    8.
  8. Open smtp port
    9.