Does MailOver move, change, or delete my emails?
MailOver marks an email as read once it has processed it, and only sends or moves a message when you ask. It never deletes or reorganizes your inbox on its own. You can disconnect an account to pause and keep your data, delete a single inbox, or delete your whole MailOver account to erase everything.
What MailOver does to your inbox
MailOver connects with the access it needs to do a real secretary's job, so it can do a little more than just look. Here is exactly what that means in practice. After it processes an email, MailOver marks that message as read. This keeps your read state in sync with what it has handled, and it is on by default. If you would rather it left messages unread, there is a setting to turn that off.
Beyond that, MailOver only acts on your command. When you ask, it can send a reply for you and move, archive, trash, or restore a message. What it does not do is act on its own. It will not delete your mail, move things around, or reorganize your inbox without you asking. And because the secretary can undo its recent actions, a change you did not want is easy to walk back.
How long MailOver keeps your synced mail
You choose how long the copy MailOver syncs is kept. Retention is configurable per account: 7, 14, 30, 60, or 90 days. The default is 90 days, which is also the longest window, and a daily cleanup removes synced email older than that. Your Action Items, Highlights, and FYIs are stored separately, so they stay even after the original email is cleaned up.
If you do set a window, a daily cleanup removes synced emails once they pass it. Your extracted items are preserved, so the Action Items, Highlights, and FYIs MailOver built for you stay even after the underlying email is cleaned up. This only affects MailOver's stored copy. The originals in your email provider are not touched by retention.
Disconnect vs. delete: three different things
People often mix these up, so here is each one and what it does.
You manage all of this from Settings, under your connected accounts. Whatever you choose, your original mail stays in your provider. MailOver's deletion only removes MailOver's own copy and the items it built. Want a copy first? You can run a one-click JSON export before you delete anything.