Will Setting a Reply To Address at a Different Domain Result in Spam

Question

I send transactional emails from my application on my customers behalf. I\'d like for the receiver to be able to click reply and have the reply go directly to my customer, witho

Answer 1

Provided your sender address is properly set and matches your DKIM/SPF DNS records, you're correct that a reply-to should not negatively effect your sender reputation.

But ultimately it's a provider level decision, so YMMV across different inbox providers.