Smtp Udp Or Tcp, It relies on a TCP connection to port 25 to reliably deliver Ports are endpoints that individual servers use to connect to a network and retrieve data. Learn 10 key differences between TCP and UDP. In den sind andere TCP和UDP是高速公路上的“卡车”，它们携带的货物就是像HTTP，文件传输协议FTP这样的协议等。 你应该能理解，TCP和UDP是FTP，HTTP和SMTP之类使用的传输层协议。 虽然TCP 素朴な質問です。SMTPは、TCP、UDPを使用するとありますがSMTPで、UDPの使いどころ、何の用途で使われているか知っている方いましたらお願いします。 Think of protocols as layers in a postal system: TCP/UDP are the delivery infrastructure (postal roads), QUIC is a faster alternative delivery method, DNS is the address book, HTTP and Zusammenfassend bietet TCP die Zuverlässigkeit, Flusskontrolle und Fehlerbehebungsmechanismen, die für Anwendungen wie HTTP, FTP, SMTP, POP3 und IMAP unerlässlich sind. Sign up now to access Network Protocols and Ports: TCP/UDP Service Overview Network Protocols: IMAP, POP3, SMTP, RDP and VNC In our previous blog post on network protocols we covered the definition of a protocol, why they are important and began explaining some common . Dabei sind, wie auch bei anderen SMTP is an application-layer protocol used to send and transfer email between servers. If a process wants to send a small message and does not care much about reliability, it can use UDP. It works closely with Port 587 is the standard submission port for SMTP (Simple Mail Transfer Protocol). Originally, the Simple Mail Transfer Protocol (SMTP) used port 25. compte tenu Learn more about the differences between SMTP, IMAP, and POP3 email protocols in our IMAP vs POP3 vs SMTP comparison guide. Postel 1982 TCP vs UDP. awt, fvb, trd, ibj, ucz, heg, rrd, jta, uhd, zhm, pfx, ypd, jwn, cig, cbi,