I'm doing migration of existing mails from old mail server to a now one. Some of the emails are compressed with zlib. At the file 10-mail.conf in old server there is setting for zlib plugin:
mail_plugins = zlib
I tried with same setting on new mail server as well as changing the setting to
mail_plugins = $mail_plugins zlib
Restarted dovecot several times. The message appears in roundcube inbox but the content cannot be displayed. I found few tutorials and they point to same settings that I already did. Is there another configuration that I'm missing? Thanks in advance.
