Most email apps on iOS and macOS route emails through their private servers which is a security risk. This risk magnifies when one has also set up their work accounts on their devices.

Also, many email apps cater to Gmail, which I understand is the most popular email service, but prohibits me from using with my accounts.

Therefore, the native, default mail clients on both platforms is what I use.

Do let me know if there are email clients that do not reroute one’s emails. I would love to try those out.