<= 220 Not really an ESMTP server
=> EHLO nosuchhost.example.com
<= 250-ready
-<= 250 AUTH XOAUTH2
+<= 250-8BITMIME
+<= 250-SMTPUTF8
+<= 250 I'll buy that for a dollar!
=> MAIL FROM:<nobody@example.com>
+<= 250-ready
+<= 250-8BITMIME
+<= 250-SMTPUTF8
<= 250 I'll buy that for a dollar!
=> RCPT TO:<somebody@example.com>
+<= 250-ready
+<= 250-8BITMIME
+<= 250-SMTPUTF8
<= 250 I'll buy that for a dollar!
=> DATA
<= 354 Go ahead