How did you switch? What about existing email senders like your bank, etc? Are you forwarding your mails?
In general, you just tell them to use your new address, change your online accounts, etc. and for the transition phase, you either forward or, like I did, just have both accounts in your mail app until you’ve reached everyone who needs the new address
I’ve been working on this for a month or two now, just steady as she goes. It’s a daunting task but worth it in the end IMO.
Also, you can use proton unlimited or SimpleLogin with your own domain and you get unlimited random email addresses for accounts/email lists. it’s a little more work but being able to know where the crap that ends up in my mailbox is from is priceless.
I hate that it’s not possible to change your email address easily (or even at all) with some services. Tell me your website backend sucks without telling me your website backend sucks.
The crazy thing is it’s not even banking or finance websites that are ass backwards (as you would expect), it’s other random sites that just for whatever reason don’t have a proper account management.
This is why you should use your own domain. If you want to change who’s handling your email, you just change your DNS MX record to a new, different host and all your mail ends up there instead. The services don’t have to know a single thing about what’s going on - the next time they send an email out, DNS will simply resolve to the new mail server.
Here is an example of how you would do it with Proton