GridInbox
GridInbox is a shared email workspace for handling customer conversations across business addresses such as support@, sales@, and billing@.
What GridInbox is
GridInbox is a shared email workspace for handling customer conversations across business addresses such as support@, sales@, and billing@. Teams can assign conversations, see who is handling them, and send or reply from the matching address using two-way aliases. Its REST API supports creating and deleting aliases, reading messages, and sending email programmatically. GridInbox can also extract one-time passwords and verification codes from incoming mail for access through its dashboard or API. The Free plan costs nothing and includes five aliases, 10 outbound and 50 inbound emails per month, 512MB of storage, a 5 MiB attachment limit, and API access. Pro costs $19 a month; Team costs $99 a month and includes five seats with role-based access control. GridInbox is intended for transactional and operational email, not bulk marketing. The service is available on the web and through its API.
Good
- Assign conversations and see who is handling them.
- Send and reply from aliases.
- REST API supports email and alias management.
- Extracts one-time passwords from incoming email.
- Team plan includes five seats and role-based access.
Watch out
- Free plan limits outbound email to 10 per month.
- Free plan allows five aliases and 512MB storage.
- Bulk marketing email is prohibited.
- Custom domains require Pro or Team.
Who it suits
GridInbox suits teams managing operational conversations across shared business addresses, including e-commerce operations, agencies, and QA automation. Solopreneurs can also use it for transactional email workflows.
Verdict
GridInbox brings shared inbox workflows, aliases, and API-based email handling together for operational use. Check plan limits and custom-domain availability against your team's needs.
Plans and prices
From GridInbox's own pricing page, checked 4 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free (Starter) | Free | 10 outbound/mo · 50 inbound/mo · 5 aliases · 512MB storage · 5 MiB attachment limit · REST API access |
| Pro | $19 a month | 10,000 outbound · 50,000 inbound · unlimited aliases · 5GB storage · 3 custom domains · REST API access · OTP auto-extraction · 7-day free trial |
| Team | $99 a month | 100k outbound · 500k inbound · unlimited aliases · 50GB storage · 10 custom domains · 5 seats with RBAC · high-frequency REST API access |
The facts
Each one read from GridInbox's own pages, with the date it was checked.
What it does
- Access controls
- Team plan includes up to five seats with role-based access control and per-inbox permissions.checked 4 Oct 2026
- Automation
- Its REST API can create and delete aliases, read messages, and send email programmatically.checked 4 Oct 2026
- Custom domains
- Pro supports up to 3 custom domains and Team supports up to 10; Free uses GridInbox system domains.checked 4 Oct 2026
- Data location
- The privacy policy says primary data is stored in AWS US-East-1 in Northern Virginia.checked 4 Oct 2026
- Email use limit
- GridInbox is designed for transactional and operational email and prohibits bulk marketing emails.checked 4 Oct 2026
- Intended users
- The maker describes use cases including e-commerce operations, QA automation, agencies, and solopreneurs.checked 4 Oct 2026
- OTP extraction
- GridInbox automatically extracts one-time passwords and verification codes from incoming email for access through the dashboard or REST API.checked 4 Oct 2026
- Product
- GridInbox is a shared email workspace for managing customer conversations across business addresses such as support@, sales@, and billing@.checked 4 Oct 2026
- Security
- The privacy policy says data in transit uses TLS 1.2 or higher and email content, attachments, and sensitive user data at rest use AES-256 encryption.checked 4 Oct 2026
- Support
- The FAQ directs users to contact the team by email for questions.checked 4 Oct 2026
- Two-way aliases
- Users can receive mail at an alias and send or reply from that same address.checked 4 Oct 2026
The company
- Company
- The site identifies the maker as Quanta Flow Inc., Sheridan, Wyoming.checked 4 Oct 2026
- Headquarters
- Sheridan, Wyoming, USAchecked 28 Sep 2026
- Team workflow
- The workspace supports assigning conversations, showing who is handling them, and replying from the appropriate business address.checked 4 Oct 2026
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