Mine

LOG: MAIN
  Unfrozen by forced delivery
T: remote_smtp for logcheck@hairtilizer.com
Connecting to gmail-smtp.l.google.com [72.14.205.109]:25 ... connected
  SMTP<< 220 mx.google.com ESMTP q13sm1412626qbq
  SMTP>> EHLO list.hairtilizer.com
  SMTP<< 250-mx.google.com at your service, [64.13.43.143]
         250-SIZE 20971520
         250-8BITMIME
         250-STARTTLS
         250 ENHANCEDSTATUSCODES
  SMTP>> STARTTLS
  SMTP<< 220 2.0.0 Ready to start TLS
  SMTP>> EHLO list.hairtilizer.com
  SMTP<< 250-mx.google.com at your service, [64.13.43.143]
         250-SIZE 20971520
         250-8BITMIME
         250-AUTH LOGIN PLAIN
         250 ENHANCEDSTATUSCODES
  SMTP>> MAIL FROM:<> SIZE=2833
  SMTP<< 530 5.5.1 Authentication Required q13sm1412626qbq
  SMTP>> QUIT
LOG: MAIN
  ** logcheck@hairtilizer.com R=smart_route T=remote_smtp: SMTP error from remote mail server after MAIL FROM:<> SIZE=2833: host gmail-smtp.l.google.com [72.14.205.109]: 530 5.5.1 Authentication Required q13sm1412626qbq
LOG: MAIN
  Frozen (delivery error message)