Documentation
Everything you need to send email through RAPID SMTP — from connecting your first server to landing in the inbox.
Welcome to the RAPID SMTP docs. Pick a guide below or use the sidebar to navigate.
Getting started
Create your account and send your first email in 10 minutes.
Connect SMTP
Add Gmail, cPanel, SendGrid, Amazon SES or any SMTP server.
Send your first email
Compose, test, and deliver a transactional email or campaign.
Contacts & templates
Import contacts, use merge tags, and reuse templates.
Campaigns
Bulk sends, throttling, recipient batching, and per-account rotation.
Scheduling
Send later, recipient timezone delivery, and queue worker behavior.
Deliverability
SPF, DKIM, DMARC, warmup, and inbox placement.
Tools
Diagnose deliverability with SPF/DKIM/DMARC, MX, blacklist, validator, headers, and generators.
Unsubscribes & suppression
How one-click unsubscribe, suppression lists, and manual review work.
FAQ
Pricing, limits, security, refunds and the small print.
Need help?
If you can't find an answer here, email support@rapidhostbd.com or open the in-app chat. Most replies arrive within a few business hours.