Treat an opt-out as a routing event. Send the request to every path that could contact the person, and stop the send before investigating why they opted out. The person's suppression entry takes priority over the reason you thought contact was allowed. A reasonable request to stop calling belongs on a company-specific suppression list, and that entry overrides other rules and exemptions.1 Revoking consent has the same effect whether the campaign is B2B or B2C.2 Build the workflow around that decision.
Capture the request clearly
Make the opt-out possible in the message itself. The person should not have to negotiate with a rep or find another route to stop future outreach.
Every B2B cold email that includes a commercial offer should give the recipient a way to opt out of further correspondence.3 An unsubscribe link is a simple way to give prospects that choice.4 Make the link easy to find, use a one-click path where possible, and honor the request promptly.5
Use the same approach for other outbound channels. Calls, texts, and faxes should each provide a clear and easy opt-out mechanism.6
Email rules also require a way out. CAN-SPAM and GDPR require businesses to provide recipients with a way to opt out of certain emails.7 Google and Yahoo have unsubscribe requirements that bulk senders must follow.8
Stop the marketing send
When the request arrives, stop the marketing sequence before spending time resolving it internally. Protect the person from the next send first.
Organisations, including charities, must stop sending marketing emails when a recipient opts out.9 Companies should continue honoring opt-outs and requests to stop calls.10 A request not to receive calls must be honored even when the person has an established business relationship with the company.11
Attach the request to the person, not just to the campaign that produced it. A campaign can end while another sequence, rep, or channel remains active, so the suppression decision needs to follow the contact into every later send path.
Apply the suppression decision across channels
Use the company-specific suppression list as the gate for every outbound path. Check it before releasing a message, call, or broadcast.
A suppression policy can require the person to be removed from the contact list when they ask to opt out, block, or discontinue communication.12 For phone outreach, the contact can be opted out of all platform phone communication or of specific broadcast channels so future broadcasts and contact attempts are suppressed.13
Keep marketing status separate from message purpose when your rules support that distinction. Some email systems allow contacts who opted out of marketing emails to receive one-to-one and transactional emails.14 That allowance does not give a cold email sequence permission to restart. Keep the marketing suppression in place until the person gives a valid new signal to receive it.
Complete the request promptly
A slow suppression-list update creates a gap between the person's decision and your system's behavior. Set the operating standard at immediate processing, with the applicable legal deadline as a backstop.
Senders must honor opt-out requests promptly.15 One stated requirement says a recipient's opt-out request must be honored within 10 business days.16 If your team can act sooner, waiting for the full window leaves more room for an avoidable follow-up send.
If you want feedback about the reason for the unsubscribe, ask after the person has unsubscribed.17 The question should not become a condition of leaving.
Check the message before it goes out
Review the complete outbound path, including templates, bulk sends, workflows, and manual follow-ups. An uninterested recipient should be able to find the exit, use it, and stay out of future marketing.
Making unsubscribe handling easy can improve deliverability, maintain an engaged email list, and reduce spam complaints.18 Giving recipients control over the content they receive can build trust by showing respect for their choices.19 Following unsubscribe best practices can help commercial email senders meet legal requirements and protect their reputation.20
Check that the unsubscribe route is visible in every commercial template, that the action writes to the suppression state used by future campaigns, and that another channel cannot reintroduce the person through an older list or separate broadcast path. These checks make the opt-out a durable system decision instead of a one-off response.
What not to do
These mistakes come from treating the request as a preference for one message stream. Keep the stop decision broader than the channel where the person first expressed it.
- Do not call someone after they asked you to stop because an established business relationship remains.11
- Do not treat a B2B campaign as an exception after consent has been revoked.2
- Do not make the recipient search for an unsubscribe route or complete an unnecessarily difficult process.5
- Do not ask why the person is leaving before the unsubscribe has completed.17
- Do not assume an email opt-out covers only email when your outreach also uses calls, texts, or faxes.6
- Do not mark the request complete while later texts continue. One lawsuit alleged repeated telemarketing texts after the sender said the recipient was successfully unsubscribed.21
- Do not ignore an unsubscribe request.22
Before the next campaign, trace one opt-out from the moment it arrives through every channel that could contact the person. This shows whether the suppression list controls the full outbound path and whether the recipient has a clear way to leave it.