Back بروتوكول نقل البريد البسيط Arabic SMTP Azerbaijani SMTP Byelorussian SMTP Bulgarian सिंपल मेल ट्रांसफर प्रोटोकॉल Bihari Simple Mail Transfer Protocol BS Simple Mail Transfer Protocol Catalan Simple Mail Transfer Protocol Czech Simple Mail Transfer Protocol Danish Simple Mail Transfer Protocol German
| Communication protocol | |
| Abbreviation | SMTP |
|---|---|
| Purpose | Electronic mail transmission protocol |
| Introduction | November 1981 |
| OSI layer | Application layer |
| Port(s) | 465, 587, 25 |
| RFC(s) | RFC 5321 |
| Internet protocol suite |
|---|
| Application layer |
| Transport layer |
| Internet layer |
| Link layer |