Transcript of session follows.

Out: 220 mail.mojadomena.pl ESMTP Postfix (Debian/GNU)
In:  EHLO mqzehadi
Out: 250-mail.mojadomena.pl
Out: 250-PIPELINING
Out: 250-SIZE 15728640
Out: 250-VRFY
Out: 250-ETRN
Out: 250-STARTTLS
Out: 250-AUTH PLAIN LOGIN
Out: 250-AUTH=PLAIN LOGIN
Out: 250-ENHANCEDSTATUSCODES
Out: 250-8BITMIME Out: 250 DSN
In:  MAIL FROM:<passage@cemcolift.com>
Out: 250 2.1.0 Ok
In:  RCPT TO:<credpath0@googlemail.com>
Out: 250 2.1.5 Ok In:  DATA
Out: 354 End data with <CR><LF>.<CR><LF>
Out: 451 4.3.0 Error: queue file write error In:  QUIT
Out: 221 2.0.0 Bye