Postfix homeserver and third party host Domain Setup

Hello dear community,

im renting a domain from I’m using the domain with cloudflare for many services that are running on my local homeserver. And now I would like to use it for my website to send Emails for registration and so on. I made the email-server (postfix) work, but my emails only arrive to gmail-Accounts. So all the other provider like outlook are returning the emails.

How do I setup the PTR and SPF Records correctly? Im running out of ideas.

Best regards,


Hi @bad.robber,

Cloudflare doesn’t handle email, but there are some tips about preventing your mail going into spam here:

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