On Mon, Dec 07, 2020 at 01:01:16PM +0000, Chris Green wrote: [snip] > > Presumably this means there's a SASL/TLS library I need to install on > the Pi, can anyone tell me what it is please. Oh, I have run 'postmap > /etc/postfix/sasl_passwd' on both systems. >
Typical! Almost immediately after posting the question I found the solution. Careful comparison of what's installed on the Pi compared with the Ubuntu system showed that libsasl2-modules was needed (I had libsasl2-modules-db already). Installing libsasl2-modules has fixed my problem. > > > While I'm about it why am I getting identical mail.log and mail.info > files created in /var/log on the Pi? > I could still do with an answer to this. -- Chris Green