Email Infrastructure
Customer.io
Automated lifecycle messaging.
$100/mo
- Category
- Email Infrastructure
- Use case
- Lifecycle email
- Team fit
- SMB–Enterprise
What it is used for
Lifecycle email
Automated lifecycle messaging
Who it is for
Built for SMB–Enterprise teams.
Deliverability controls
Review authentication, suppression, bounce handling, monitoring, and the support available during delivery issues.
Technical fit
Check API, SMTP, event, template, and integration requirements against your application or sales stack.
When it fits
Use it when
- You send from your own domains and need authentication.
- Someone owns bounces, suppression, and reputation.
- The product workflow needs events, not only a mailbox.
Skip it when
- You can stay on a simple mailbox provider.
- No one will watch deliverability after go-live.
- Compare Mailgun if you need email infrastructure instead.
How to start
Separate marketing from sales mail
Don’t blast from the domain you use for 1:1 outreach.
Authenticate everything
SPF, DKIM, DMARC before volume.
Watch bounces daily
Infrastructure problems show up as reputation, not as a pretty dashboard.
Pricing
Listed price
$100/moper month
- Essentials starts around $100 per month based on people in the workspace.
Confirm current plans on Customer.io before you buy. Prices checked 30 Sep 2026.
Sending volume without authentication, consent, and bounce handling can damage the domain. Confirm those controls before you scale.
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