Run campaigns without the per-email tax.
Newsletters, launches and drip sequences sent through your own SMTP — no surprise overage bills.
- Newsletters & launches
- Drip & re-engagement
- Predictable flat cost
15M+
Emails delivered
2,400+
Active senders
99.9%
Uptime
4.8★
Average rating
Features
Everything you need to send
A complete toolkit — without locking you into a marketplace.
Bring your own SMTP
Plug in any SMTP — Gmail, SES, Mailgun, Postmark or your own VPS.
Bulk & transactional
Send one-off emails or queue thousands across contact groups.
Smart contacts
Import CSV, group, tag, segment your subscribers in seconds.
Live tracking
Opens, clicks, bounces tracked per campaign and per SMTP.
Schedule campaigns
Pick a date, walk away. Workers send while you're offline.
Encrypted credentials
SMTP passwords are AES-encrypted. Only you can decrypt them.
SMTP integration
Use the SMTP you already trust
Connect any SMTP — Gmail, Amazon SES, Mailgun, Postmark, SendGrid, or your own server. We handle queueing, retries and rendering. You keep your sender reputation.
- Test connection in real-time
- Multiple SMTPs, one dashboard
- TLS / SSL with port auto-detection
- Per-SMTP logs and stats
SMTP — Add account
hostsmtp.your-domain.com
port587
encryptionTLS
usernamenoreply@your-domain.com
status
Verified
How it works
Live in 4 simple steps
01
Connect your SMTP
Add host, port, username and password. Test in real-time.
02
Import contacts
Upload a CSV or add subscribers manually. Group and tag.
03
Design your email
HTML editor with {{name}} variables and live preview.
04
Send & track
Run now or schedule. Watch opens and clicks live.
— CAPABILITIES
Two disciplines.
Ten capabilities.
The full surface area of RAPID SMTP — what you can compose, schedule, import, segment and govern — laid out plainly.
01 / 02
Sending
Compose · schedule · control
- 01HTML editor with live preview
- 02Variables like {{name}} for personalization
- 03Reusable templates with edit history
- 04Schedule sends to any future date/time
- 05Pause, resume, or cancel mid-flight
02 / 02
Contacts
Import · segment · govern
- 06CSV import with column mapping
- 07Groups and tags for segmentation
- 08Auto-deduplication on email
- 09Bulk filter, mark and delete
- 10One-click unsubscribe links built in
Live performance · last 30 days
v2.4Total sent
12,481+18.2%
Open rate
42.3%
Click rate
8.1%
Bounces
0.4%
Analytics & tracking
Know exactly what works
Tracking pixels, click redirects and bounce signals — rolled up by campaign, SMTP and date range. Make every send better than the last.
- Real-time open & click tracking
- Per-recipient delivery status
- Bounce handling & suppression
- Filter by SMTP, campaign, date
— AUTOMATION
Keeps running, even when you don't.
A DB-backed background queue keeps campaigns sending even when you're offline. Pause, resume or cancel anytime — schedule sends weeks in advance.
queue.worker · sending
batch 042 · 1,284 / 5,000STAGE 01
DB-backed queue
Persistent and durable
PostgreSQL · ACID
STAGE 02
Scheduled sends
Pick any future date
Cron · timezone-aware
STAGE 03
Live status
Pause, resume, cancel
Realtime controls
SECURITY & PRIVACY / 04
Built with security at the core.
Your credentials, your contacts, your sends — locked down by design and isolated per account at the database layer.
VAULT STATUSSEALED
cipherAES-256-GCMtransportTLS 1.3at-restencryptedaccessRLS · per-rowlogsredacted
SECURITY MANIFEST03 CONTROLS
01
Encrypted credentials
SMTP passwords are AES-encrypted at rest. We never log them, never echo them, never expose them in the dashboard.
02
Row-level isolation
Postgres row-level security policies guarantee you only ever see your own data — enforced at the database, not the app layer.
03
GDPR-friendly
One-click unsubscribe links, List-Unsubscribe headers and full data export available from your account at any time.
WHO IT'S FOR / 03
Three teams. One sending engine.
Same platform, tuned for the way you actually work.
Transactional email, your stack.
Wire receipts, OTPs and notifications through any SMTP with a clean API and webhook events.
- Receipts, OTPs, alerts
- Simple REST + webhooks
- Bring any SMTP provider
Every client in their own lane.
Run multiple SMTPs and clients side-by-side with isolated stats, contacts and templates per account.
- Per-client SMTP profiles
- Isolated reporting
- Multi-account workspace
Comparison
RAPID SMTP vs the rest
| Feature | RAPID SMTP | Others |
|---|---|---|
| Bring your own SMTP | ||
| No per-email pricing | ||
| Bulk + transactional in one | ||
| Open / click tracking | ||
| Background queue & schedule | ||
| Encrypted credentials |
Pricing
Pick a plan that fits your volume
Transparent monthly pricing in BDT. Instant activation, no setup fees.
— REVIEWS
What senders
say in production.
4.8 / 5 · 184 reviews
98%
would recommend
We replaced two paid email tools with RAPID SMTP and our own SES. Deliverability went up and the bill went down — the dashboard is genuinely a pleasure to use.
Tanvir Ahmed
Head of Growth, Shopnobari
REVIEW · 002
"Wired Mailgun in under five minutes and the background queue handled a 40k onboarding blast without breaking a sweat. Logs and retries saved us a 2 a.m. incident."
Rebecca Carter
Senior Backend Engineer, Finlytic
01 / 05
— DELIVERABILITY
Land in the inbox,
not in spam.
Because you bring your own SMTP, deliverability is in your control. We help with SPF/DKIM/DMARC, suppression lists, throttling and bounce handling.
SPFDKIMDMARCList-UnsubscribeSuppressionThrottling
domain-health · rapidhostbd.com
checked just now- 01PASSSPF / DKIM / DMARC checksRecords validated against the sending domain on every campaign.
- 02ACTIVEAuto-suppression on bounceHard bounces and complaints are quarantined automatically.
- 03ENABLEDList-Unsubscribe headerOne-click RFC 8058 unsubscribe injected into every send.
- 04RUNNINGThrottled queue workerRespect your SMTP's rate limits — no provider warnings.
4 / 4 checks healthyuptime 99.98%
01020304050607
Getting started
Account → first connected SMTP → first send in under 10 minutes.
Connect SMTP
Gmail, Workspace, cPanel, SES, SendGrid, Mailgun, or any custom relay.
Send your first email
Compose, preview, test deliver, and ship transactional or bulk mail.
Contacts & templates
Import CSVs, merge tags, reusable templates and segments.
Deliverability
SPF, DKIM, DMARC, warm-up cadence, and inbox placement playbooks.
Tools
SPF/DKIM/DMARC, MX, blacklist, validator, header analyzer, generators.
FAQ
Pricing, limits, security, refunds and the small print.
— CONTACT
Talk to the team
behind the queue.
Send us a message
FORM · 01@
Email tips, monthly
SMTP tuning, deliverability and product updates. No spam.
Join 2,400+ senders already subscribed.