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ðÒÉÌÏÖÅÎÉÅ 1. ëÏÍÁÎÄÙ ÐÒÏÔÏËÏÌÁ SMTP

HELO <SP> <domain> <CRLF> ïÔËÒÙÔØ ÓÅÓÓÉÀ ×ÚÁÉÍÏÄÅÊÓÔ×ÉÑ ÐÏ ÐÒÏÔÏËÏÌÕ SMTP. <domain> - ÄÏÍÅÎÎÏÅ ÉÍÑ ÍÁÛÉÎÙ
MAIL <SP> FROM:<reverse-path> <CRLF> óÏÏÂÝÉÔØ ÁÄÒÅÓ ÏÔÐÒÁ×ÉÔÅÌÑ (<reverse-path>). ïÂÑÚÁÔÅÌØÎÁÑ ËÏÍÁÎÄÁ, ËÏÔÏÒÕÀ ÎÁÄÏ ×ÙÄÁÔØ ÐÅÒÅÄ ÏÔÐÒÁ×ËÏÊ ÓÏÏÂÝÅÎÉÑ
RCPT <SP> TO:<forward-path> <CRLF> óÏÏÂÝÉÔØ ÁÄÒÅÓ ÐÏÌÕÞÁÔÅÌÑ (forward-path). ïÂÑÚÁÔÅÌØÎÁÑ ËÏÍÁÎÄÁ, ËÏÔÏÒÕÀ ×ÙÄÁÀÔ ÐÏÓÌÅ MAIL FROM, ÎÏ ÐÅÒÅÄ DATA
DATA <CRLF> îÁÞÁÔØ ÐÅÒÅÄÁÞÕ ÔÅÌÁ ÐÏÞÔÏ×ÏÇÏ ÓÏÏÂÝÅÎÉÑ. ôÅÌÏ ÓÏÏÂÝÅÎÉÑ ÄÏÌÖÎÏ ËÏÎÞÁÔØÓÑ ÔÏÞËÏÀ(".") × ÐÅÒ×ÏÊ ÐÏÚÉÃÉÉ ÓÔÒÏËÉ
RSET <CRLF>
SEND <SP> FROM:<reverse-path> <CRLF> ðÏÓÌÁÔØ ÓÏÏÂÝÅÎÉÅ ÎÁ ÔÅÒÍÉÎÁÌ ÐÏÌØÚÏ×ÁÔÅÌÑ, ËÏÔÏÒÙÊ ÏÐÒÅÄÅÌÑÅÔÓÑ ËÏÍÁÎÄÏÊ RCPT
SOML <SP> FROM:<reverse-path> <CRLF> SEND OR MAIL. ðÏÓÌÁÔØ × ÐÏÞÔÏ×ÙÊ ÑÝÉË ÉÌÉ ÎÁ ÔÅÒÍÉÎÁÌ ÐÏÌØÚÏ×ÁÔÅÌÑ
SAML <SP> FROM:<reverse-path> <CRLF> SEND AND MAIL. ðÏÓÌÁÔØ × ÐÏÞÔÏ×ÙÊ ÑÝÉË É ÎÁ ÔÅÒÍÉÎÁÌ ÐÏÌØÚÏ×ÁÔÅÌÑ
VRFY <SP> <string> <CRLF> ðÏÌÕÞÉÔØ ÉÎÆÏÒÍÁÃÉÀ Ï ÐÏÌØÚÏ×ÁÔÅÌÅ, ÉÍÑ ËÏÔÏÒÏÇÏ ÕËÁÚÙ×ÁÅÔÓÑ × ËÁÞÅÓÔ×Å ÁÒÇÕÍÅÎÔÁ ËÏÍÁÎÄÙ (<string>)
EXPN <SP> <string> <CRLF> ðÏÌÕÞÉÔØ ÉÎÆÏÒÍÁÃÉÀ Ï ÐÏÌØÚÏ×ÁÔÅÌÑÈ ÚÁÒÅÇÉÓÔÒÉÒÏ×ÁÎÎÙÈ × ËÁÞÅÓÔ×Å ÐÏÌÕÞÁÔÅÌÅÊ ËÏÒÒÅÓÐÏÎÄÅÎÃÉÉ
HELP [<SP> <string>] <CRLF> ëÒÁÔËÁÑ ÓÐÒÁ×ËÁ ÐÏ ËÏÍÁÎÄÁÍ ÐÒÏÔÏËÏÌÁ
NOOP <CRLF> îÅÔ ÏÐÅÒÁÃÉÉ
QUIT <CRLF> úÁ×ÅÒÛÉÔØ ÓÅÓÓÉÀ
TURN <CRLF> ðÏÍÅÎÑÔØÓÑ ÍÅÓÔÁÍÉ ÓÅÒ×ÅÒÕ É ËÌÉÅÎÔÕ

ðÒÉÌÏÖÅÎÉÅ 2. ëÏÄÙ ×ÏÚ×ÒÁÔÁ SMTP

211System status, or system help reply óÔÁÔÕÓ ÓÉÓÔÅÍÙ ÉÌÉ Help
214Help message. [Information on how to use the receiver or the meaning of a particular non-standard command; this reply is useful only to the human user] ëÒÁÔËÁÑ ÓÐÒÁ×ËÁ
220<domain> Service ready SMTP-ÓÅÒ×ÉÓ ÇÏÔÏ× Ë ÒÁÂÏÔÅ
221<domain> Service closing transmission channel óÅÒ×ÉÓ ÚÁËÒÙÌ ËÁÎÁÌ ÐÅÒÅÄÁÞÉ ÄÁÎÎÙÈ
250Requested mail action okay, completed óÏÅÄÉÎÅÎÉÅ ÕÓÔÁÎÏ×ÌÅÎÏ
251User not local; will forward to <forward-path> ðÏÌØÚÏ×ÁÔÅÌØ ÎÅ ÍÅÓÔÎÙÊ. ÷ÙÐÏÌÎÉÔØ ÐÅÒÅÎÁÐÒÁ×ÌÅÎÉÅ ÚÁÐÒÏÓÁ
354Start mail input; end with <CRLF>.<CRLF> îÁÞÁÔØ ××ÏÄ ÐÏÞÔÏ×ÏÇÏ ÓÏÏÂÝÅÎÉÑ
421<domain> Service not available, closing transmission channel [This may be a reply to any command if the service knows it must shut down] óÅÒ×ÉÓ ÏÔÓÕÔÓÔ×ÕÅÔ. ëÁÎÁÌ ÐÅÒÅÄÁÞÉ ÄÁÎÎÙÈ ÚÁËÒÙÔ
450Requested mail action not taken: mailbox unavailable [E.g., mailbox busy] îÅÔ ×ÏÚÍÏÖÎÏÓÔÉ ÚÁÐÉÓÁÔØ ÄÁÎÎÙÅ × ÐÏÞÔÏ×ÙÊ ÑÝÉË
451Requested action aborted: local error in processing ïÛÉÂËÁ ÐÒÉ ÏÂÒÁÂÏÔËÅ ÚÁÐÒÏÓÁ
452Requested action not taken: insufficient system storage úÁÐÒÏÓ ÎÅ ×ÙÐÏÌÎÅÎ ÎÅÄÏÓÔÁÔÏÞÎÏ ÐÁÍÑÔÉ ÎÁ ×ÙÞÉÓÌÉÔÅÌØÎÏÊ ÕÓÔÁÎÏ×ËÅ
500Syntax error, command unrecognized [This may include errors such as command line too long] óÉÎÔÁËÓÉÞÅÓËÁÑ ÏÛÉÂËÁ - ÎÅÔ ÔÁËÏÊ ËÏÍÁÎÄÙ
501Syntax error in parameters or arguments óÉÎÔÁËÓÉÞÅÓËÁÑ ÏÛÉÂËÁ × ÁÒÇÕÍÅÎÔÁÈ ËÏÍÁÎÄÙ
502Command not implemented äÁÎÎÁÑ ËÏÍÁÎÄÁ ÎÅ ÍÏÖÅÔ ÂÙÔØ ×ÙÐÏÌÎÅÎÁ
503Bad sequence of commands îÅÐÒÁ×ÉÌØÎÁÑ ÐÏÓÌÅÄÏ×ÁÔÅÌØÎÏÓÔØ ËÏÍÁÎÄ
504Command parameter not implemented ðÁÒÁÍÅÔÒ ËÏÍÁÎÄÙ ÎÅ ÍÏÖÅÔ ÂÙÔØ ÉÓÐÏÌØÚÏ×ÁÎ × ÄÁÎÎÏÍ ËÏÎÔÅËÓÔÅ
550Requested action not taken: mailbox unavailable [E.g., mailbox not found, no access] îÅ ÎÁÊÄÅÎ ÓÏÏÔ×ÅÔÓÔ×ÕÀÝÉÊ ÐÏÞÔÏ×ÙÊ ÑÝÉË
551User not local; please try <forward-path> ðÏÌØÚÏ×ÁÔÅÌØ ÎÅ ÎÁÊÄÅÎ ÍÏÖÎÏ ÐÏÐÒÏÂÏ×ÁÔØ ÏÔÐÒÁ×ÉÔØ ÐÏÞÔÕ ÐÏ ÄÒÕÇÏÍÕ ÁÄÒÅÓÕ
552Requested mail action aborted: exceeded storage allocation ðÒÅ×ÙÛÅÎÙ Ë×ÏÔÙ ÎÁ ÉÓÐÏÌØÚÏ×ÁÎÉÅ ÒÅÓÕÒÓÏ× ÐÁÍÑÔÉ
553Requested action not taken: mailbox name not allowed [E.g., mailbox syntax incorrect] éÍÑ ÐÏÞÔÏ×ÏÇÏ ÑÝÉËÁ ÎÅÐÒÁ×ÉÌØÎÏÅ
554Transaction failed ïÂÍÅÎ ÚÁ×ÅÒÛÉÌÓÑ Á×ÁÒÉÊÎÏ

îÁÚÁÄ | óÏÄÅÒÖÁÎÉÅ


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