One of our customers isn't getting dropoff notices and the mail.log shows:<br><br>
<p class="MsoNormal"><span style="color:#1f497d">Jan 6 14:16:34 asltux13
postfix/smtp[12616]: 1ADB7721101: to=<<a href="mailto:peter.fletcher@telent.com">customer@someaddress.mail</a>>,
relay=smtp.xxxxxxx]:25, delay=13, delays=0.16/0.01/12/0.03,
dsn=5.0.0, status=bounced (host smtp.xxxxxx] said: 501 #5.1.3
Partial domain not allowed: 'zendto' (in reply to MAIL FROM command))</span></p>
<br>I changed the 'myhostname' in Postfix's main.cfg and this has helped - but now I see in the sent mail headers: Return-Path: <a href="mailto:www-data@ourdomain.co.uk">www-data@ourdomain.co.uk</a><br><br>Having a quick search this may be down to the syntax used to generate the email - would this be in some php (or other) code somewhere and any advice on where to look and what to change. I'm rnning version 4.06<br>
<br>Thanks<br><br>Nigel Kendrick<br><br>