Unsubscribe from mailing lists
Stop a newsletter or a marketing text with one press, and move a list that keeps sending to Spam.
A mailing list is mail that a sender sends to many people: a newsletter, a store's offers, a product update. CommSync reads the list headers of each email, so it knows which emails come from a list. You can stop a list with one press, from the email itself. CommSync then keeps track of the request, so you can see when a sender ignores it.
Where the list actions are
An email from a mailing list gets one strip under its header. The strip holds every action and every state of the list:
- Mailing list. The strip says how much mail the list sends, and it has an Unsubscribe button.
- Unsubscribed. The strip turns green and says who unsubscribed. It shows while the sender has time to stop.
- Finish on the sender's site. Some senders ask you to finish on their own page. The strip has I finished and Open again.
- Still sending. The strip turns amber when the list still mails you two days after the unsubscribe. It has Move to Spam and Try again.
The message menu (⋯, or a right-click) has the same actions. On the iPhone, press and hold the email.
Some list mail carries a fact that you need from the sender. Examples are a bill, a receipt, a delivery, a booking, a deadline, an account alert, or a one-time code. Such an email shows its smart card and no Mailing list strip, so the offer to unsubscribe does not sit next to a bill. Unsubscribe stays in the message menu.
What happens when you press Unsubscribe
CommSync asks you to confirm first. The confirm names the list, the address that the unsubscribe applies to, and how CommSync does it. Then CommSync uses the first method that the sender supports:
One-click request
CommSync sends the standard one-click request (RFC 8058) from its own server. You leave CommSync for nothing, and the sender never sees your browser.
An unsubscribe email from your line
When the sender asks for an email, CommSync sends one short email from the line that got the mail. It goes only to the one address that the sender named, with no copies. That address must be on the sender's own domain. If it is not, CommSync skips this step. The email says only "unsubscribe". You can find it in Sent.
The sender's page
When the sender offers only a web page, CommSync opens it in a new tab and sends nothing for you. The page can ask questions that only you can answer. Press I finished when you complete the page.
If a step does not work, CommSync goes on to the next one. You can tick Also archive the emails from this list in the confirm. That option archives your own conversations with the list, and nobody else's. It is off by default.
A link in the email itself
Some emails have no unsubscribe header, only a link in the text. The strip then offers Unsubscribe on with the site's name. CommSync shows the site before you press, and it never opens that link for you. Your browser opens it after your press.
A shared line stops for everyone
An unsubscribe belongs to the line, not to you. The sender sees one address, so one press stops the mail for every person who reads that line. The confirm says how many people read the line. After the press, the strip names the teammate who pressed, for every reader.
So that one person cannot stop mail that the team needs by mistake, only a person who can send from the line can unsubscribe it. The unsubscribe email is an email from the line. A teammate who can only read the line sees the state and no button. See roles and permissions.
When you act as a teammate, you see the state of each list, and you cannot unsubscribe.
When CommSync does not offer Unsubscribe
CommSync never unsubscribes from an email that looks unsafe. That is an email with a caution strip, or an email from a sender that CommSync filed as spam. An unsubscribe request tells a spammer that your address is live. The caution strip offers Report spam instead.
When a sender keeps sending
Senders have two days to stop. That is the rule of the standard and of the large mail providers. When a list still mails the line after two days, the strip turns amber and says Still sending. You can:
- Press Try again. CommSync sends the request again. You can try three times a day for each list.
- Press Move to Spam. CommSync files this list on this line to your Spam, now and for new mail. It applies to you only. It never marks the sender as spam, so other mail from the same address still reaches you. To undo it, choose Stop moving this list to Spam in the message menu. CommSync moves the conversations of the list back to your inbox.
Marketing texts
A text has no unsubscribe header. Some texts come from a short code, or
carry a carrier footer such as "Reply STOP to opt out". For those, CommSync
shows a quiet line under the thread header with Send STOP. CommSync then sends
the text STOP from your line. You see it in the thread, and the sender's
confirmation arrives as a normal text. Not now hides the line for that
thread.
AI and automation
No model decides or presses an unsubscribe. A list is a fact in the headers, so code finds it, and a person presses.
- Ask can list the mailing lists that mail your lines and answer questions such as "which newsletters send me the most mail". It cannot unsubscribe.
- Agents never unsubscribe and never send STOP.
- An AI app that you connect over MCP can list your mailing lists and unsubscribe one, with the same rules as the button. It never sends STOP.
Limits
| Limit | Value |
|---|---|
| Unsubscribe presses | 30 an hour for each person |
| Try again | 3 a day for each list |
| Time a sender has to stop | 2 days |
| Subject of an unsubscribe email | 200 characters |
| Text of an unsubscribe email | Always the one word "unsubscribe" |