May 7 10:11:47 ip-10-35-24-10 postfix/smtp[8558]: 799E18BFA21: to=, relay=mta.hosts.net.nz[43.245.52.230]:25, delay=54, delays=0/0/3.1/51, dsn=5.0.0, status=bounced (host mta.hosts.net.nz[43.245.52.230] said: 550 relay not permitted (in reply to RCPT TO command)) May 7 10:11:50 ip-10-35-24-10 postfix/smtp[8573]: 8F6498BFA22: to=, relay=none, delay=0.01, delays=0/0/0/0, dsn=5.4.6, status=bounced (mail for ck5.co.nz loops back to myself)