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nestoru/SMTP: RCPT To: command verb versus to: header

Last active August 29, 2015 14:03
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SMTP: RCPT To: command verb versus to: header
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SMTP: RCPT To: command verb versus to: header
# WHEN "RCPT TO:" = "TO:" (to: <me@sample.com>)
MAIL FROM:me@sample.com
250 2.1.0 Sender OK
RCPT TO:me@sample.com
250 2.1.5 Recipient OK
DATA
354 Start mail input; end with <CRLF>.<CRLF>
subject:Using RCPT TO: = to:
to: me@sample.com
# WHEN "RCPT TO:" != "TO:" (to: <who@et.com>)
MAIL FROM:me@sample.com
250 2.1.0 Sender OK
RCPT TO:me@sample.com
250 2.1.5 Recipient OK
DATA
354 Start mail input; end with <CRLF>.<CRLF>
subject:Using RCPT TO: != to:
to: who@et.com
# WHEN "TO:" IS NOT USED (to: Undisclosed recipients:;)
MAIL FROM:me@sample.com
250 2.1.0 Sender OK
RCPT TO:me@sample.com
250 2.1.5 Recipient OK
DATA
354 Start mail input; end with <CRLF>.<CRLF>
subject:Using no to:
.
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