Anti-Spam Policy
Last updated: 2026-06-13
This Anti-Spam Policy sets out the rules every Mailmundo Customer must follow when sending email through our platform. It is incorporated into the Terms of Service and complements the Acceptable Use Policy. Mailmundo has zero tolerance for spam: sending unsolicited bulk email harms recipients, our shared AWS SES sending reputation, and every Customer on the platform. This page is informational and is not legal advice; you are responsible for your own legal compliance. Violations may result in immediate suspension or termination.
1. Consent Is Required
You may send email through Mailmundo only to recipients who have given valid consent or for whom you otherwise have a lawful basis and an existing business relationship recognized by applicable law. Consent must be freely given, specific, and demonstrable, and you must retain records of when, how, and for what each recipient opted in. You may not use purchased, rented, scraped, harvested, appended, or co-registration lists. "I have their email address" is not consent. The burden of proving consent rests with you.
2. CAN-SPAM Compliance
Every commercial message you send must comply with the U.S. CAN-SPAM Act, including: accurate and non-deceptive "From," "To," "Reply-To," and routing/header information that identifies you as the sender; subject lines that are not false or misleading; clear identification of the message as an advertisement where required; inclusion of your valid physical postal address; a clear and conspicuous explanation of how to opt out; honoring opt-out requests promptly and within ten (10) business days; and not selling or transferring the email addresses of people who have unsubscribed. You are also responsible for compliance with other applicable laws (for example, CASL, GDPR/ePrivacy, and LGPD) when emailing recipients subject to them.
3. Required Unsubscribe and Physical Address
Every campaign must include a functioning, easy-to-use unsubscribe mechanism and a valid physical postal mailing address. Mailmundo provides one-click unsubscribe and the list-unsubscribe header (RFC 8058) and automatically maintains suppression lists; you may not remove, disable, obscure, or circumvent these mechanisms, and you may not require a recipient to log in, pay a fee, provide information beyond an email address, or take any step other than sending a reply or visiting a single page to opt out. Unsubscribe links must remain functional for at least 30 days after sending.
4. Suppression-List Handling
Mailmundo automatically suppresses recipients who unsubscribe, hard-bounce, or file spam complaints, and prevents future sends to them across your account. You must not attempt to email any suppressed address, re-import or "clean" lists to override suppression, move suppressed contacts to another list or account to evade opt-outs, or otherwise circumvent suppression. You are responsible for incorporating your own prior opt-outs and Do-Not-Email records into the lists you import.
5. Prohibited Practices
You may not: send unsolicited bulk or commercial email; use deceptive subject lines, headers, or sender identities; harvest, generate, or guess email addresses; relay through open or third-party mail servers; send to spam traps, role accounts, or invalid addresses you have not validated; mail to recipients who have not engaged or consented; or engage in any practice designed to evade spam filters, authentication, or our controls. You must authenticate your sending domains with SPF, DKIM, and DMARC and maintain good list hygiene.
6. Complaint Thresholds and Mailbox-Provider Rules
You must comply with mailbox-provider bulk-sender requirements, including those of Gmail and Yahoo, which apply to senders of 5,000 or more messages per day to their users. These require domain authentication (SPF, DKIM, and DMARC), one-click unsubscribe, and keeping the spam-complaint rate below 0.3% as measured by tools such as Google Postmaster, with under 0.1% strongly recommended. Sustained or spiking complaint rates, high bounce rates, or spam-trap hits may trigger throttling, list review, suspension, or termination. We monitor these signals to protect the platform's deliverability for all Customers.
7. Consequences of Violation
If you violate this Anti-Spam Policy, we may—at our discretion and depending on severity—throttle or pause your sending, require you to re-permission or clean your lists, suspend or terminate your account without refund, and report unlawful activity to authorities. You are responsible for any fines, penalties, or claims arising from your non-compliant sending and agree to indemnify Mailmundo as provided in the Terms. We may take action immediately and without prior notice where necessary to protect recipients, the Service, or our sending reputation.