[BlueOnyx:26343] Re: Backscatter / user not found bounce

[Meaulnes Legler @ MailList]

hi
I have the same question:

On 02.07.23 21:45, Colin Jack via Blueonyx wrote:
> Hi Michael,
> 
> 2.) Enable and configure SPF and switch it to "Sign & Verify" mode
> 
> This checks the SPF records of sender domains and if the senders
> IP is not within the SPF records published by say hotmail.com, then
> the email will be rejected at the MTA w/o bounce and NDN.
> 
> This may be a doh! question but where do I set this?
> I can only see DKIM in the settings on the GUI.
> 
> Thanks
> 
> Colin

Thank you and best regards

で⊃ Meaulnes Legler
Zurich, Switzerland
+41¦0 44 260-1660