The short answer
A charge from POSTMARK* ACTIVE CAMPAIGN corresponds to high-deliverability transactional email delivery, inbound email webhooks, or DMARC monitoring from ActiveCampaign, LLC.
Why it shows up like this
An entry on your corporate credit card or bank statement reading POSTMARK* ACTIVE CAMPAIGN represents a professional software subscription charge from ActiveCampaign, LLC for the Postmark transactional email delivery platform. Postmark provides high-deliverability cloud email sending infrastructure for critical application alerts, user password resets, and customer account notifications.
This recurring monthly charge typically appears because your software application subscribed to a monthly transactional email plan or exceeded included monthly email sending volume thresholds, resulting in pay-as-you-go overage fees. Since ActiveCampaign acquired Postmark, billing statements frequently reference the corporate parent entity alongside the product name.
To inspect your monthly email volume, download PDF invoices, adjust sending streams, or cancel your active subscription, log in to your account dashboard on account.postmarkapp.com. If you do not recognize the transaction or suspect unauthorized card usage, contact billing support directly or notify your financial institution to file a dispute. Keeping close track of your monthly statements ensures complete financial security and prevents unexpected surprises from recurring charges.
Don’t recognize it? Common scenarios
Transactional email platform charges often appear automatically when applications scale their user messaging capacity.
- An ongoing monthly transactional email plan renewed on the credit card.
- Application email sending volume exceeded the 10,000 monthly threshold.
- A dedicated IP address ($50/mo) was added for high-volume email servers.
How to locate the invoice and cancel
Follow these step-by-step instructions to access your account portal and manage your email delivery plan.
- Log in to Postmark Open account.postmarkapp.com and sign in with your credentials.
- Review Account Billing & Invoices review to Account > Billing to review monthly sending volume and download PDF receipts.
- Cancel Account Select Cancel Subscription or pause active email sending servers to stop recurring charges.
Frequently Asked Questions
Find answers regarding ActiveCampaign billing descriptors, refund policies, and transactional email limits.
Why does the descriptor say ActiveCampaign?
ActiveCampaign acquired Postmark in 2022 and processes billing transactions under the ActiveCampaign corporate name.
Can I receive a refund from Postmark?
Postmark subscriptions and email sending fees are non-refundable once billed.
Dispute Rights & Fraud Prevention
If an unauthorized software charge appears on your statement, contact your card issuer promptly to report fraudulent billing.
Independent reference — not affiliated with ActiveCampaign, LLC. Billing names and policies change; verify with the merchant or your bank before acting.
Verified sources
Every claim on this page is checked against official sources — open them to confirm before you call your bank.
- Postmark Pricing & Transactional Plans https://postmarkapp.com
- CFPB: Disputing Unrecognized Charges https://www.consumerfinance.gov
Reviewed Aug 15, 2026 · high · About UnknownCharges