Contact AuthStamps
Professional Support for Verified USPS Forever® Stamps
Customer Support Email
Please allow up to 1 business day for a response.
Most inquiries are answered within 24 hours during business days.
Support Hours
Support time: Monday - Friday From 9:00 AM - 18:00 PM (UTC - 05:00)
Affiliate & Business Partnerships
AuthStamps welcomes inquiries from content creators, publishers, and businesses interested in long-term, compliant affiliate partnerships.
Please contact us by email with relevant details.