root@web:/# echo -e "Subject: Test\nhier inhalt" | /usr/bin/sendmail -v m.texo@gmx.de -f noreply@graycore.net
noreply@graycore.net,-f,m.texo@gmx.de... Connecting to [127.0.0.1] via relay...
220 web.graycore.net ESMTP Sendmail 8.14.3/8.14.3/Debian-9.4; Sat, 15 Sep 2012 14:46:37 +0200; (No UCE/UBE) logging access from: localhost(OK)-localhost [127.0.0.1]
>>> EHLO web.graycore.net
250-web.graycore.net Hello localhost [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-EXPN
250-VERB
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-AUTH DIGEST-MD5 CRAM-MD5
250-DELIVERBY
250 HELP
>>> VERB
250 2.0.0 Verbose mode
>>> MAIL From:<root@web.graycore.net> SIZE=26 AUTH=root@web.graycore.net
250 2.1.0 <root@web.graycore.net>... Sender ok
>>> RCPT To:<noreply@graycore.net>
>>> RCPT To:<-f@web.graycore.net>
>>> RCPT To:<m.texo@gmx.de>
>>> DATA
250 2.1.5 <noreply@graycore.net>... Recipient ok
550 5.1.1 <-f@web.graycore.net>... User unknown
250 2.1.5 <m.texo@gmx.de>... Recipient ok
354 Enter mail, end with "." on a line by itself
>>> .
050 <m.texo@gmx.de>... Connecting to mx1.gmx.net. via esmtp...
050 220 mx0.gmx.net GMX Mailservices ESMTP {mx061}
050 >>> EHLO web.graycore.net
050 250-mx0.gmx.net GMX Mailservices
050 250-8BITMIME
050 250-ENHANCEDSTATUSCODES
050 250 SIZE
050 >>> MAIL From:<root@web.graycore.net> SIZE=287
050 550 5.1.8 Cannot resolve your domain {mx061}
050 <noreply@graycore.net>... Connecting to mail.bloody-network.net. via esmtp...
050 220 "mail.bloody-network.net"
050 >>> EHLO web.graycore.net
050 250-tbn04.bloody-network.net
050 250-PIPELINING
050 250-SIZE 52428800
050 250-ETRN
050 250-STARTTLS
050 250-AUTH PLAIN
050 250-ENHANCEDSTATUSCODES
050 250-8BITMIME
050 250 DSN
050 >>> STARTTLS
050 220 2.0.0 Ready to start TLS
050 >>> EHLO web.graycore.net
050 250-tbn04.bloody-network.net
050 250-PIPELINING
050 250-SIZE 52428800
050 250-ETRN
050 250-AUTH PLAIN
050 250-ENHANCEDSTATUSCODES
050 250-8BITMIME
050 250 DSN
050 >>> MAIL From:<root@web.graycore.net> SIZE=287 AUTH=<>
050 250 2.1.0 Ok
050 >>> RCPT To:<noreply@graycore.net>
050 >>> DATA
050 450 4.1.8 <root@web.graycore.net>: Sender address rejected: Domain not found
050 <noreply@graycore.net>... Deferred: 450 4.1.8 <root@web.graycore.net>: Sender address rejected: Domain not found
050 554 5.5.1 Error: no valid recipients
050 >>> RSET
050 250 2.0.0 Ok
050 <root@web.graycore.net>... aliased to nekses
050 nekses... Connecting to local...
050 nekses... Sent
250 2.0.0 q8FCkbKj004577 Message accepted for delivery
noreply@graycore.net,m.texo@gmx.de... Sent (q8FCkbKj004577 Message accepted for delivery)
>>> RSET
250 2.0.0 Reset state
root... Using cached ESMTP connection to [127.0.0.1] via relay...
>>> MAIL From:<> SIZE=1050
250 2.1.0 <>... Sender ok
>>> RCPT To:<root@web.graycore.net>
>>> DATA
050 <root@web.graycore.net>... aliased to nekses
250 2.1.5 <root@web.graycore.net>... Recipient ok
354 Enter mail, end with "." on a line by itself
>>> .
050 nekses... Connecting to local...
050 nekses... Sent
250 2.0.0 q8FCkbKm004577 Message accepted for delivery
root... Sent (q8FCkbKm004577 Message accepted for delivery)
Closing connection to [127.0.0.1]
>>> QUIT
221 2.0.0 web.graycore.net closing connection