SYSTEM INFORMATION | |
---|---|
OS type and version | Ubuntu Linux 22.04.4 |
Webmin version | 2.111 |
I’m migrating my working webmin/virtualmin server from Centos 7 to Ubuntu. postfix main.cf matches and webin postfix configuration matches on both servers. Configuration checks seem OK. Both postfix main.cf files use: | |
#header_checks = regexp:/etc/postfix/header_checks | |
I can send emails within the ubuntu server from one account to another internal account. Outgoing email is rejected due to charset set to NULL. I’m guessing ubuntu postfix 3.6.4 might require a different configuration than the centos postfix 2.10.1 but don’t know how the headers get set on either server. Any thoughts on what to check? |
Ubuntu server test email:
This is a multi-part message in MIME format.
–bound1714059362
Content-Type: multipart/alternative; boundary=“altsbound1714059362”
Content-Transfer-Encoding: 7bit–altsbound1714059362
Content-Type: text/plain; charset=
Content-Transfer-Encoding: 7bitCheck all headers
–altsbound1714059362
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: 7bit
Sending the same message on the working Centos server shows:
This is a multi-part message in MIME format.
–bound1714059290
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bitCheck default headers
–bound1714059290–