Email APIs · side by side
SMTP.com vs SparkPost
Compare SMTP.com, SparkPost by sending volume, delivery webhooks, inbound email, domain limits and retention.
Email APIs pricing calculator
100K
SMTP.com
$80 / mo
STARTER · 100K emails
SparkPost
Custom / not listed
No priced plan for this volume · 100K emails
Listed USD plan fees and tracked usage only. Unlisted compute, transfer, extras, taxes and contract terms are excluded. Custom or unsupported plan usage is not estimated.
Email APIs overview & pricing
| Email APIs | SMTP.com | SparkPost |
|---|---|---|
| Provider | SMTP.com | Bird |
| Billing unit | emails | emails |
| Plan at selected usage | STARTER | No priced plan for this volume |
| Monthly estimate | $80/mo | Custom / not listed |
| Workload | 100K emails | 100K emails |
| Free access | Trial | Trial availability varies |
| Published plans | ESSENTIAL, STARTER, GROWTH, BUSINESS, HIGH VOLUME SENDERS | SMS, WhatsApp, Lookup, Realtime, Phone numbers, Email, Apple Messages, Voice, Verify, Mailbox, eSIM, Email validation |
| Prices checked | 2026-10-08 | 2026-10-08 |
Provider
- SMTP.com
- SMTP.com
- SparkPost
- Bird
Billing unit
- SMTP.com
- emails
- SparkPost
- emails
Plan at selected usage
- SMTP.com
- STARTER
- SparkPost
- No priced plan for this volume
Monthly estimate
- SMTP.com
- $80/mo
- SparkPost
- Custom / not listed
Workload
- SMTP.com
- 100K emails
- SparkPost
- 100K emails
Free access
- SMTP.com
- Trial
- SparkPost
- Trial availability varies
Published plans
- SMTP.com
- ESSENTIAL, STARTER, GROWTH, BUSINESS, HIGH VOLUME SENDERS
- SparkPost
- SMS, WhatsApp, Lookup, Realtime, Phone numbers, Email, Apple Messages, Voice, Verify, Mailbox, eSIM, Email validation
Prices checked
- SMTP.com
- 2026-10-08
- SparkPost
- 2026-10-08
Email APIs monthly cost
SMTP.com: $80SparkPost: Not priced
Cost by emails
Cost curve data
| emails | SMTP.com | SparkPost |
|---|---|---|
| 0 | $25 | $0 |
| 25K | $25 | Not priced |
| 50K | $25 | Not priced |
| 100K | $80 | Not priced |
| 200K | $300 | Not priced |
| 500K | $300 | Not priced |
| 1M | $500 | Not priced |
0
- SMTP.com
- $25
- SparkPost
- $0
25K
- SMTP.com
- $25
- SparkPost
- Not priced
50K
- SMTP.com
- $25
- SparkPost
- Not priced
100K
- SMTP.com
- $80
- SparkPost
- Not priced
200K
- SMTP.com
- $300
- SparkPost
- Not priced
500K
- SMTP.com
- $300
- SparkPost
- Not priced
1M
- SMTP.com
- $500
- SparkPost
- Not priced
Email APIs feature comparison
| Email APIs | SMTP.com | SparkPost |
|---|---|---|
| Sending methods | Not listed | Not listed |
| Inbound processing | Not listed | Not listed |
| Sending domains | Not listed | Not listed |
| Activity retention | Not listed | Not listed |
| Webhooks & events | Not listed | Not listed |
| Dedicated IP | Not listed | Not listed |
| Single sign-on | Not listed | Not listed |
| Support | Not listed | Not listed |
Sending methods
- SMTP.com
- Not listed
- SparkPost
- Not listed
Inbound processing
- SMTP.com
- Not listed
- SparkPost
- Not listed
Sending domains
- SMTP.com
- Not listed
- SparkPost
- Not listed
Activity retention
- SMTP.com
- Not listed
- SparkPost
- Not listed
Webhooks & events
- SMTP.com
- Not listed
- SparkPost
- Not listed
Dedicated IP
- SMTP.com
- Not listed
- SparkPost
- Not listed
Single sign-on
- SMTP.com
- Not listed
- SparkPost
- Not listed
Support
- SMTP.com
- Not listed
- SparkPost
- Not listed
Which email providers fit your needs?
SMTP.com features & plan notes
- SMTP relay
- Sender reputation
- Bulk transactional email
- Dedicated IP
- Email Relay API
- Reliable Expert Support
- Detailed Reporting
- Reputation defender (add on)
SparkPost features & plan notes
- Deliverability analytics
- Enterprise scale
- Predictive signals
How to compare email providers
Separate transactional delivery from campaigns, outreach and agent inboxes. Compare monthly sends and daily caps; contacts, seats and inboxes are not sending allowances. Budget separately for dedicated IPs, validation and attachments.
Browse Email APIs pricing