How It Works
Connect your inbox, set triggers, and let PostSignup handle the rest.
Connect Your Inbox
One click OAuth for Gmail or Microsoft 365. Send only permission. No passwords.
Set Your Triggers
Choose events: signup, trial, payment, inactivity. Use templates or write your own.
Emails Send Automatically
Each user gets a personal email from your real address. You see every send in your audit log.
What the Email Looks Like
Plain text, personal emails that feel human. No marketing templates.
Quick question about your signup
From: Alex Chen <alex@yourcompany.com>
Hey Sarah, Saw you just signed up. Welcome! I'm the founder. If you have questions or want a quick walkthrough, just reply here. Or grab 15 minutes: calendly.com/alex Alex
Anything blocking you?
From: Alex Chen <alex@yourcompany.com>
Hey Sarah, Noticed you signed up but haven't created your first project yet. If you're stuck, I'm happy to help. Just reply. Alex
Thank you (for real)
From: Alex Chen <alex@yourcompany.com>
Hey Sarah, Just saw your upgrade come through. Thank you. If there's anything I can do to help you get more value, I'm one reply away. Alex
We Only Send. We Never Read Your Inbox.
This is the most important thing to know about PostSignup. Send email: ON. Read inbox: OFF. Read threads: OFF. Read contacts: OFF.
Send only permission
Gmail: gmail.send scope. Microsoft 365: Mail.Send. Minimum required.
We never read your inbox
We cannot see your emails, drafts, threads, or contacts. Ever.
Secure OAuth with CSRF protection
Cryptographically signed state parameters. No passwords stored. Revoke anytime.
Enterprise-grade encryption
AES-256-GCM encryption for all sensitive data. Your tokens are always protected.
Full Control. Full Audit Log.
You control tone, timing, and limits. See every email sent. Pause anytime.
- Daily send caps and throttling
- Pause any playbook instantly
- Per user suppression list
- Automatic unsubscribe handling
- Complete audit log with timestamps
- Export data anytime
Built for Security-Conscious Teams
Your data security is our top priority. We implement industry-leading security practices so you can focus on growing your business.
AES-256 Encryption
All OAuth tokens and sensitive data encrypted at rest using AES-256-GCM. Keys rotated regularly.
CSRF Protection
Cryptographically signed OAuth state parameters prevent cross-site request forgery attacks.
Workspace Isolation
Strict access controls ensure users can only access their own workspace data. No cross-tenant access.
Data Retention
Automated data cleanup policies. Inactive user data anonymized per GDPR requirements.
Complete Audit Trail
Every action logged with timestamps. Export audit logs anytime for compliance reviews.
GDPR & SOC 2 Ready
Data export, erasure requests, and privacy controls built-in. Ready for enterprise compliance.
Pay As You Go
Start free. Pay only for what you send. No surprises.
Example monthly costs on Pro:
Frequently Asked Questions
Everything you need to know about PostSignup