Closing a mailbox is not an unsubscribe.

Answer Closing a mailbox is not an unsubscribe. RFC 3691 describes the IMAP UNSELECT command, which closes a mailbox without the side effects some clients get from another close. The document is RFC 3691, titled Internet Message Access Protocol (IMAP) UNSELECT command. The client is letting go of a mailbox. A person asking to leave your mail is a different act, and this command does not perform it. If a seller reads a close as someone quitting the list, the seller has renamed a client command.

The note that started this: RFC 3691, Internet Message Access Protocol (IMAP) UNSELECT command, RFC 3691.

List hygiene is real work. It is also easy to fake with the wrong event. A mailbox closing can happen because the program moved on, not because a reader spoke. Before you compare solo ad pricing, ask what the order counts as a person leaving. A price that treats a close as an unsubscribe is a price built on a mailbox feature. You would be paying for a story about software.

That is a fact about mail software or about an old specification. It is not a solo ad price, a rank, or proof that a stranger opted in. A buyer still has to name the list, the sending domain, and the refund line on the order. UNSELECT fills none of those blanks. A seller who opens with the command and never names the list is handing you a public document and calling it list care. Read the document if you want. Pay only for the order.

What does RFC 3691 describe?

RFC 3691 describes the IMAP UNSELECT command, which closes a mailbox without the side effects some clients get from another close. The document is RFC 3691, titled Internet Message Access Protocol (IMAP) UNSELECT command.

The point of the command, at the level a buyer needs, is simple. The client can close the mailbox. Some other way of closing can carry side effects the client does not want, so this command closes without those side effects. That is a software preference. It is not a reader preference. Nobody in the specification is asking to leave a solo ad list. A seller who imports closes into an unsubscribe column is mixing a mailbox session with a person's request.

Ask the seller which events remove a person, and ask to hear the answer in ordinary words. If the answer is a command name, you have not been told about people. Keep the command in the software notes. Put the removal rule, if there is one, in the order, next to the list name and the sending domain. The refund line should cover a close that was sold as a person leaving. A buyer who cleans a purchased list from closes is editing fiction.

• The order says what counts as a person leaving.
• A closed mailbox is not that event.
• The list, the sending domain, and the refund line are named.
• A command name is not accepted as list hygiene.

Is closing a mailbox an unsubscribe?

No. Closing a mailbox is not an unsubscribe. The command lets the client close a mailbox. It does not record a person asking to leave a list.

You still want a real way for a person to leave. That way is a request you can point at, not a folder the client released. If the seller's proof that the list is tidy is a pile of closes, ask for the requests instead. No requests means you do not know who left. You only know a program stopped looking at a mailbox. Those are not the same fact, and only one of them belongs in a conversation about the list.

If you have not paid, do not pay while the words are mixed. If you have paid and people were dropped because a mailbox closed, the refund line is the next sentence. On the seller side, say close when the client closed a mailbox. Say unsubscribe only when a person asked to leave. The rename feels small in a chat and looks obvious when the buyer asks who spoke.

Does closing a mailbox prove opt-in?

No. That is a fact about mail software or about an old specification. It is not a solo ad price, a rank, or proof that a stranger opted in.

A close does not remember a signup. It also does not prove the opposite. It is silent about permission. A stranger can sit on the list while mailboxes open and close all day. The silence will not hand you a rank, and it will not set a price. Ask who is on the list. Ask which domain sends. Ask what the refund line says when a close was called an unsubscribe, or when the list is not the list you named.

Judge the vendor by the answers, not by the command. When you look for best solo ad vendors, stay with the list, the sending domain, and what happens when a mailbox command was sold as a person leaving. Closing a mailbox is not an unsubscribe. Pay only when the order says so in plain words. A client letting go of a folder is not permission, and it is not the letter.