I’m planning to migrate my email to a different provider, but they don’t give much storage, so I was wondering what people would recommend for this kind of setup: basically I’d like to use the new provider as something like a relay. I’d want them to only store an email or two at a time and have some kind of self hosted solution that just grabs the emails from the provider and stores them after deleting them off the provider so it’s never storing my entire email history, and also keeps my sent emails somewhere so that I have a copy of it. Ideally I’d wanna be able to set this up with a mail client like NextCloud’s.
I’m doing exactly this -using a cheap server from IONOS as my SMTP relay. I followed this guide but had to modify it slightly. (ie. It doesn’t explain that you need 2 MX records: the primary one points to your actual self-hosted mail server so messages from other servers will go there. The secondary MX record points to your SMTP relay so that DKIM and other DNS based security features will recognize your Relay as a valid sender for the domain.)
Cool, thanks for the guide! Glad to know I’m not just crazy trying to do things this way