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POP3 service: port 110 over STARTTLS (recommended), or port 995 with SSL.
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IMAP service: port 143 over STARTTLS (recommended), or port 993 with SSL.
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SMTP service: port 587 over STARTTLS.
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常用的端口(SMTP: 587, POP3: 995, IMAP: 993)
POP3 service: port 110 over STARTTLS (recommended), or port 995 with SSL.
IMAP service: port 143 over STARTTLS (recommended), or port 993 with SSL.
SMTP service: port 587 over STARTTLS.
常用的端口(SMTP: 587, POP3: 995, IMAP: 993)