I’m considering using ProxiedMail but I wanted to get clarity on how your service manages technical email authentication for deliverability. Specifically:

How does ProxiedMail handle SPF, DKIM, and DMARC for emails proxied through your domains?

Are there any potential deliverability issues when using your default proxy domains (like pxdmail.net) due to authentication or shared reputation?

If I use a custom domain, what is the process for setting up the appropriate SPF, DKIM, and DMARC records?

Have you seen any cases where recipient services or sites block or flag emails sent via proxy/temporary domains for security or anti-abuse reasons?

Are there any recommendations for maximizing deliverability and avoiding getting flagged as spam?

Thanks for any insight you can provide.