Your SMTP Server.
Our Intelligence.
owlSender connects to your existing email server — Gmail, Outlook, Amazon SES, SendGrid, or any SMTP provider. No vendor lock-in, no shared IPs, no deliverability gambles. You stay in control of your sending reputation while we handle the scheduling, throttling, automation, and analytics.
7-day free trial · No credit card required · Cancel anytime
Why Bring Your Own Server?
Most email platforms send from shared infrastructure — meaning your deliverability depends on other people's behaviour. With owlSender, emails are sent directly from your SMTP server, so you keep full control of your sender reputation, SPF/DKIM/DMARC records, and sending limits. Connect any provider you already trust and pay for.
Workspace
Office 365
Server
Up and Running in 3 Simple Steps
Connect your email server, build your campaign, and let owlSender handle the rest.
Connect Your SMTP
Enter your SMTP server details — host, port, credentials. Works with Gmail, Amazon SES, SendGrid, Outlook, or any provider. Takes 60 seconds.
Build Your Campaign
Create an email job for one-off sends, or design a multi-step automated flow with delays, templates, and personalisation variables.
Send & Track
owlSender throttles your sends to protect your reputation, schedules them around quiet hours, and tracks opens, clicks, and conversions in real-time.
Everything You Need to Scale Your Outreach
A complete email marketing toolkit — powered by your own infrastructure.
Bring Your Own Server
Connect any SMTP server — Gmail, Amazon SES, SendGrid, Outlook, or your own. Emails are sent directly from your infrastructure so you maintain full control of your sender reputation and deliverability.
Smart Throttling
Set per-hour sending limits to stay within your provider's rate limits. owlSender automatically paces your emails so you never hit quotas or trigger spam filters.
Email Campaigns
Create and schedule bulk email jobs with intelligent send-time optimisation. Send to thousands of recipients while protecting your reputation with built-in throttling.
Automated Email Flows
Build multi-step email sequences with configurable delays, timezone-aware scheduling, and per-step templates. Nurture leads, onboard customers, or run drip campaigns — all on autopilot.
Real-Time Analytics
Track opens, click-throughs, and conversions with pixel tracking and link rewriting. See per-flow and per-recipient performance at a glance with customisable dashboard columns.
Email Template Builder
Choose from pre-built templates for welcome emails, newsletters, marketing, and more — or create and upload your own custom HTML templates. Use variables for dynamic personalisation.
Bulk Recipient Management
Add recipients one by one, paste a comma-separated list, or upload a CSV file. Preview and confirm before adding — with duplicate detection and validation built in.
Quiet Hours & Timezone Scheduling
Set quiet hours per server configuration so emails never land in inboxes at 3am. All scheduling is timezone-aware — set your local timezone and owlSender handles the rest.
Full API Access
Trigger flows, add recipients, send emails, and pull analytics programmatically with API keys. Integrate owlSender into your existing CRM, website, or backend systems.
Variable System & Personalisation
Use built-in variables like {{name}} and {{email}}, or define your own custom variables per recipient via JSON. Every email can be uniquely personalised.
Unsubscribe & Compliance
Automatic unsubscribe link handling for marketing flows ensures GDPR and CAN-SPAM compliance. Manage blacklists and keep your sending reputation clean.
Built For Your Use Case
Whether you're a solo founder, agency, or growing team — owlSender adapts to how you work.
🚀 SaaS & Product Teams
Automate onboarding flows, trial expiry reminders, and feature announcements. Trigger email sequences via API when users sign up or take key actions in your product.
🏪 E-Commerce & Retail
Send order confirmations, abandoned cart reminders, and promotional campaigns. Use templates for seasonal sales and track which emails drive the most conversions.
📣 Marketing Agencies
Manage multiple client SMTP servers from one dashboard. Each client keeps their own sender reputation while you orchestrate campaigns, flows, and reporting centrally.
👨💻 Developers & Makers
Use the API to integrate email sending into your apps. Add recipients to flows programmatically, trigger jobs via webhooks, and build custom workflows on top of owlSender.
📰 Content Creators & Newsletters
Send beautiful newsletters with custom HTML templates. Track which content gets the most engagement and grow your subscriber base with automated welcome sequences.
🎓 Education & Events
Send event invitations, course updates, and follow-up sequences. Use timezone-aware scheduling to reach global audiences at the right time, every time.
Why owlSender Over Other Platforms?
Most email tools force you onto their servers. We do things differently.
❌ Traditional Platforms
- Shared sending infrastructure
- Your reputation depends on others
- Vendor lock-in on contacts & data
- Charges per email sent
- Limited SMTP customisation
- Opaque deliverability
✅ owlSender (BYOES)
- Your own SMTP server
- Full control of sender reputation
- Your data stays yours
- Flat monthly pricing
- Any SMTP provider supported
- Transparent open & click tracking
Simple, Transparent Pricing
Flat monthly pricing. No per-email charges. Start with a 7-day free trial — no credit card required.
Free
Get started and explore the platform
- 1 email flow
- 10 emails / month
- 1 email job
- 1 email template
- 1 SMTP server config
- Analytics dashboard
Starter
For small businesses getting started
- 5 email flows
- 10,000 emails / month
- 10 email jobs
- 10 email templates
- Slideshow generator
- 2 API keys
- Connect your own SMTP server
Professional
Unlimited access for scaling businesses
- Unlimited email flows
- Unlimited emails / month
- Unlimited email jobs
- Unlimited templates
- Unlimited slideshow posts
- Unlimited API keys
- Unlimited SMTP server configs
- Priority support
Frequently Asked Questions
What does "Bring Your Own Email Server" mean?
It means owlSender doesn't send emails from our servers. You connect your own SMTP provider — Gmail, Amazon SES, SendGrid, Outlook, or any SMTP server — and we send through that. Your emails come from your domain with your reputation.
Which email providers are supported?
Any provider that supports SMTP. This includes Gmail / Google Workspace, Amazon SES, SendGrid, Mailgun, Outlook / Office 365, Postmark, your own self-hosted server, and many more.
Do I need to change my DNS records?
No. Your DNS (SPF, DKIM, DMARC) is already configured for your email provider. Since owlSender sends through your existing server, everything just works — no DNS changes needed.
Can I connect multiple email servers?
Yes. You can configure multiple SMTP servers, each with their own sending limits, quiet hours, and timezone settings. Use different servers for different campaigns or clients.
How does throttling work?
You set a per-hour sending limit on each email server configuration. owlSender automatically paces your emails so you never exceed your provider's rate limits or trigger spam filters.
Is there an API?
Yes. Generate API keys from your dashboard and use them to add recipients to flows, trigger email jobs, and pull analytics. Full API documentation is available in-app.
What happens after the free trial?
After 7 days you'll need to choose a plan to continue. No credit card is required to start, and you can cancel at any time.
Ready to Send Smarter Emails?
Connect your SMTP server and start your 7-day free trial today. No credit card required. No vendor lock-in. Ever.
Get Started Free