Help Center
Guides and answers to get you sending — and keep your email landing in the inbox.
Getting started
Sign up, add a domain, send your first email.
Deliverability
DKIM, SPF, DMARC and reputation basics.
Credits & billing
How credits, usage and auto-recharge work.
Frequently asked questions
How do I verify my sending domain?
Add your domain in the dashboard. SendPaw generates the exact DKIM, SPF and DMARC records — publish them with your DNS provider, then click Verify. Propagation usually takes a few minutes.
How do I send email — API or SMTP?
Both work. Use the REST API with an
Authorization: Bearer fxm_…
header, or point your app at our SMTP relay using your API key as the password. See the API docs.
Why did my email bounce?
Common causes are invalid recipients, full mailboxes, or the recipient server rejecting your message. Bounced addresses are added to your suppression list automatically to protect your reputation.
How does billing work?
Pay-as-you-go. Buy credits (1 credit = a fixed number of emails), and you're charged per accepted message. No subscription, and credits don't expire. See pricing.
How do I rotate an API key?
Create a new key in the API Keys section of your dashboard, update your app, then revoke the old one. Keys are shown once at creation — store them securely.
Still need a hand?
Our team is happy to help with anything not covered here.
Contact support