I thought the whole reason for the iPhone 15 having usb2.0 was because it’s using last years chip. Last years chip also had a usb 2.0 controller. I don’t understand why everybody’s freaking out about this

You can still access the mail without the dns entries.

If you used to enter, say for example mail.domain.com in your mail client. That would have pointed to an IP address of a mail server.

Use that IP address instead of the domain name.

I used to do email migration for a web design company and it happened all the time where dns switched before email was migrated.

If your email was hosted by a third party like Google etc then the dns won’t matter.

1: there’s a third party app called MailJerry - I’ve used it before for these types of migrations

2: if you set the mail rules on iCloud.com, the emails will go in to their respective folders at the server level and you won’t need to configure it every time you set up a mail client.

Bonus points if that Linux box on your cupboard in intel Mac mini- I’ve been using them instead of raspberry pis and they’re amazing