rendered paste bodyOut: 220 mta1.mydomain.com ESMTP
In: EHLO XRX_0000AA71FBF4.otherdomain.ca
Out: 250-mta1.mydomain.com
Out: 250-PIPELINING
Out: 250-SIZE 20480000
Out: 250-ETRN
Out: 250-STARTTLS
Out: 250-AUTH LOGIN PLAIN
Out: 250-AUTH=LOGIN PLAIN
Out: 250-ENHANCEDSTATUSCODES
Out: 250-8BITMIME
Out: 250 DSN
In: MAIL FROM: <outbound@otherdomain.ca>
Out: 250 2.1.0 Ok
In: RCPT TO: <user@otherdomain.ca> ORCPT=rfc822;user@otherdomain.ca
Out: 451 4.3.5 Server configuration error
Session aborted, reason: lost connection