mails & notifications deliverd in Junk mail

When i send Newsletters or offers for users to them

they deliverd as junk mail…!!!

As Sample in hotmai’s junkl show this letter:

Microsoft SmartScreen has blocked this message for your safety and we’ll delete it after ten days.

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Any solution??


This is quite common if you are not using the SMTP mail method and within that, are not using any domain keys or other authentication keys for the sending domain.