Contact mail.cx
We aim to respond to genuine inquiries within two business days. Please use the channel that fits your request — automated triage routes faster that way.
Response time: typically within 2 business days. Security and abuse reports are prioritized.
General support
Questions about how mail.cx works, your account, custom domains, API integration, or billing.
Email: service@mail.cx
Billing and subscriptions
Pro subscription changes, invoices, refunds within the 14-day window, or VAT receipts. Please include your account email and the Paddle receipt ID if available.
Email: service@mail.cx
Privacy and GDPR data requests
Data subject access, deletion, or rectification requests under the GDPR / UK GDPR / CCPA. We will verify the request belongs to the account holder before action and respond within the statutory window.
Email: service@mail.cx
Abuse and phishing reports
Report inboxes used to phish, spam, or harass third-party services. Include the offending address, timestamps, and any evidence (headers, screenshots). We act on confirmed abuse reports same-day where possible.
Email: service@mail.cx
DMCA / copyright notices
Notices must follow 17 U.S.C. § 512(c)(3): identify the work, identify the infringing material, state a good-faith belief and accuracy, and include a physical or electronic signature. Counter-notices follow the same format.
Email: service@mail.cx
Press and partnerships
Press inquiries, integration partnerships, or content collaboration. Mention your publication or organization and the angle.
Email: service@mail.cx
Operator
mail.cx is operated as an independent online service. We are a small remote team and do not maintain a public walk-in office. All formal correspondence should go through the email channels above.