We propose adding an SPF report to avoid getting messages flagged as spam. When you are sending from a static IP address, insert it on your SPF document within your domain registrar's DNS configurations as follows: I ordinarily advise applying up a minimum of the following pointers from the security https://lorenzoonnhd.blogdal.com/26541462/the-single-best-strategy-to-use-for-directadmin-migration