Open a separate mailbox for Agent. The first thing to do is isolation and auditing.

The first thing you notice when you see something like Agently Mail is that it separates emails from personal accounts into separate workspaces. Systems like email usually look very simple: receiving, searching, replying, forwarding, deleting, and downloading attachments are all trivial actions. But once these actions are handed over to the Agent, the trouble will change from “understanding an email” to “how to contain identity, history and side effects together.”

Throwing a bunch of newsletters into it and giving it a try is actually a very suitable starting point. The newsletter has low risk, repetitive content, and high fault tolerance. It is most suitable to see whether the system is doing summarization or process convergence. The difference between just feeding the email text to the model and handing an executable mailbox to the model is not a little bit of functionality, but the action boundary, credential boundary, and playback capabilities. The former is more like reading an article, while the latter is like taking over the workflow.

What really needs to be watched is not whether it can read emails, but whether it can isolate things that should be isolated. Personal mailboxes are usually mixed with orders, verification codes, contracts, recruitment, reimbursements, subscription notifications and temporary forwardings. Agent directly takes over this kind of mailbox, and the first thing that happens is often not a misunderstanding, but an out-of-bounds operation: replying to the wrong thread, deleting the wrong email, taking attachments to places they shouldn’t go, or sending a seemingly complete reply to the wrong person. Emails rarely cause accidents at a single point. More often than not, small actions are stacked on top of each other, causing half of the communication link to become crooked.

Therefore, the value of the Agent’s mailbox is not “whether it can receive emails”, but whether it has clearly separated the identity, permissions, action logs and rollback paths. Independent accounts, short-term credentials, clear folder boundaries, auditable operation records, and drafts are generated by default. These things are not obvious, but they determine whether this type of product can really be used. Without these, the mailbox is just replaced by a client that can speak better; with these, the section of personal workflow that is most likely to get out of control has been circled.

This type of mailbox is more suitable for handling subscription emails, routine notifications, status synchronization and low-risk follow-up, but is not suitable for directly touching HR, legal affairs, payment, verification codes and all sensitive communications with strong timeliness. The clearer the boundaries, the more the Agent will resemble an assistant that can handle chores in parallel, rather than an automatic reply machine that may mix personal communications with business communications at any time. Email is not a trivial matter. After it is used by Agent, the first thing to make up for is the boundary.