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It's worth noting that many recipients will use SPF and DMARC to avoid accepting "forged" email like this -- spammers make very heavy use of the historical lack
by andrewaylett 5y ago
It's worth noting that many recipients will use SPF and DMARC to avoid accepting "forged" email like this -- spammers make very heavy use of the historical lack of authorisation for sending mail as if from a particular address.
- the8472 5y agoThe context of this thread is having a domain with a catchall inbox and that domain already having all the necessary DNS stuff is assumed. The custom From is just a way to send from any address for that catchall, I was not suggesting to use it to send from abitrary addresses, which would be quite pointless since you then wouldn't get the replies.
- andrewaylett 5y agoThe context is also using a third-party service for the catchall, which is less likely to have suitable records set up for sending from.