I received a very basic spam, using my e-mail address as sender and recipient. This is not normal because SPF should not allow this, this spam should have been rejected.
I quickly realized that there is no SPF in my Postfix configuration. So I manually installed
postfix-policyd-spf-python and edited main.cf and master.cf. Now SPF is working for inbound e-mails. But a Yunohost update may remove these…
I think this should be default in Yunohost, I don’t see any reason to run a mail server without SPF checking.
Is it just me or Yunohost does not enable SPF check by default ?
My YunoHost configuration
Hardware: x64 vps
Internet access: in a datacenter