When someone says stop, every campaign stops
Opt-outs, bounces and your own block list are checked before every email, in every campaign.

How does Super Intelligent Sender handle unsubscribes?
Every email Super Intelligent Sender sends ends with an unsubscribe link and carries List-Unsubscribe headers, so mail apps can show their own one-click unsubscribe button. An unsubscribe, a reply asking to stop, or a hard bounce adds the address to the suppression list straight away. Before each email is sent, Super Intelligent Sender checks it against that list and against your do-not-contact list of addresses and whole domains.
Unsubscribe link
Added to the end of every email automatically.
One-click unsubscribe
List-Unsubscribe and List-Unsubscribe-Post headers, so Gmail and other apps can show their own unsubscribe button.
Opt-out replies
"Please remove me" replies are recognised and the lead is suppressed in every campaign.
Hard bounces
Addresses that hard-bounce are suppressed so they are not tried again.
Do-not-contact list
Block single addresses or whole domains; matching leads are skipped at import and never emailed.
Role addresses skipped
Shared inboxes such as info@, sales@ and support@ are skipped at import.
Frequently asked questions
How does Super Intelligent Sender handle unsubscribes?
Every email Super Intelligent Sender sends ends with an unsubscribe link and carries List-Unsubscribe headers, so mail apps can show their own one-click unsubscribe button. An unsubscribe, a reply asking to stop, or a hard bounce adds the address to the suppression list straight away. Before each email is sent, Super Intelligent Sender checks it against that list and against your do-not-contact list of addresses and whole domains.
How fast is an unsubscribe applied?
Immediately. The address is suppressed when the unsubscribe arrives, and every later send is checked against the list.
Does Super Intelligent Sender add my postal address to emails?
No. The footer is the unsubscribe link only. If the law where you send requires a postal address, add it to your signature or template.
Related features
Sending & limits
Connect your Gmail or Google Workspace mailboxes and Super Intelligent Sender decides, for each message, whether now is the right time to send it.
Learn more →AI reply inbox
Replies arrive in one inbox, already labelled. Answer the interested ones without leaving Super Intelligent Sender.
Learn more →Leads & import
Bring leads in from CSV, see exactly what was imported and skipped, and fix gaps before they reach a campaign.
Learn more →See Super Intelligent Sender with your own sending setup
Book a short demo. We will connect a mailbox, check your timing and walk through replies and the pipeline with you.
- 20-minute call
- On your own mailboxes
- Reply within one business day