I was trying to install zimbra mail server in EC2 ubuntu server.
While installation i faced many issue .like ldap configuration failed.i configured MX record even though it was showing MX record error.i have tested in MXrecord tool it was showing . ..
So i proceed by ignoring MX record error.
Now issue is that mails getting in spam for gmail ,yahoo,
i have configure spf ,dmarc also
and i am not getting mails in zimbra.