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) © 允许规范转载 赞 如果觉得我的文章对你有用，请随意赞赏