Yes. Set up an autoresponder series that starts when a user signs up and guides them through your product.
New: Own SMTP plans now start at ₹2,999 a year with unlimited sending. See plans →
New: Own SMTP plans now start at ₹2,999 a year with unlimited sending. See plans →
Welcome new signups, guide them to their first win, and send product updates and system emails from one platform with a developer-friendly API.
Use managed servers or plug in your own Amazon SES account.
SaaS growth depends on what happens after signup. Users who do not reach value in the first few days rarely come back, and customers who do not hear about new features do not upgrade.
GO MAILBOX covers both sides. Your marketing team runs onboarding series, newsletters and upgrade campaigns, while your developers send password resets, alerts and receipts through the API.
Add subscribers and send system emails through the REST API.
Create a series that starts when a user signs up.
Store plan and usage as custom fields.
Send product updates and upgrade offers to the right users.
Lifecycle email and system email together.
Step-by-step emails that guide new users to value.
Send system emails and sync subscribers from your app.
Target free, trial and paid users separately.
Share releases and tips with your user base.
Two-factor authentication and role-based team access.
SPF, DKIM and DMARC for app and marketing domains.
Software companies at every stage.
Onboarding, renewals and account alerts.
Welcome emails and re-engagement.
Renewal reminders and service notices.
Docs updates and changelog emails.
Can I send onboarding emails to new users?
Yes. Set up an autoresponder series that starts when a user signs up and guides them through your product.
Can my app send system emails?
Yes. Send password resets, alerts and receipts from your app using the REST API.
Can I target users by plan?
Yes. Add plan or usage data as custom fields and send to the right users with segments.
Create a free account, import your list and send your first campaign. 14 days free, no credit card.
Enterprise bulk email marketing. A product of Tech Guru IT Solutions, New Delhi.
© 2026 GO MAILBOX · Tech Guru IT Solutions