JetEmail vs. Mail Baby
Both services provide SMTP relay and API sending. JetEmail also signs mail for your domain, provides separate credentials for each sender, tracks delivery activity and includes inbound filtering.
JetEmail includes
- DKIM signing for each sending domain
- Open and click tracking with delivery webhooks
- Separate credentials and quotas for each server, app or customer
- Inbound filtering, quarantine and delivery on the same account
Monthly pricing
| Volume | JetEmail | Mail Baby |
|---|---|---|
| Account minimum | $0/mo | $1/mo |
| 3,000 emails / month | $0/mo | $1.60/mo |
| 10,000 emails / month | $10/mo | $3/mo |
| 50,000 emails / month | $10/mo | $11/mo |
| 100,000 emails / month | $20/mo | $21/mo |
| Overage (per 1,000 emails) | $0.20 | $0.20 |
Mail Baby totals use its public $1 monthly account fee plus $0.20 per 1,000 emails. JetEmail totals use the current plan allowances.
Mail Baby pricing checked June 17, 2026. Vendor pricing can change.
Feature comparison
| Feature | JetEmail | Mail Baby |
|---|---|---|
| Sending | ||
| Outbound REST API | ||
| SMTP relay (smarthost) | ||
| Outbound spam and malware filtering | ||
| Click and open tracking | ||
| Webhooks | ||
| Custom sending domains | ||
| Inbound | ||
| Inbound spam filtering for your MX | ||
| Inbound parse webhooks | ||
| Quarantine management | ||
| Network and authentication | ||
| Anycast network across 5 regions | ||
| Owns IP addresses and ASN | ||
| SPF, DKIM, DMARC support | SPF required; DKIM pass-through | |
| TLS encryption in transit | ||
| Delivery logs | 60-day message metadata | |
| Accounts and cost | ||
| Free tier (no credit card) | ||
| Lowest account cost | $0/mo free plan | $1/mo active account fee |
| Pay-as-you-go rate | $0.20 per 1,000 extra | $0.20 per 1,000 |
| Unlimited SMTP users | 1 SMTP user | |
| Per-user SMTP and API key quotas | ||
| Log retention (free plan) | 30 days | 60 days metadata |
| Log retention (paid plans) | 120 days | 60 days metadata |
This comparison reflects Mail Baby's public SMTP relay, FAQ and API documentation.
Feature information checked June 17, 2026. Vendor offerings can change.
DKIM signing for your domain
JetEmail publishes a DKIM record for your domain and signs every outbound message as that domain. Receiving servers see a signature that matches the From address, which is what DMARC alignment depends on.
Mail Baby's FAQ describes something different: it passes through DKIM headers your own server has already set, and signs only the transport hostname. If your servers sign for themselves, that is fine. If they do not, nothing is signed in your name.
acme.example
Configure your domain's DNS records
Domain Information
Details about your domain configuration
Status
ActiveCreated
July 12, 2026
DNS Configuration
Add these records to your DNS provider
Host
spf.acme.example Value
Generated when you add the domain Host
jetemail._domainkey.acme.example Value
Generated when you add the domain Host
_dmarc.acme.example Value
v=DMARC1; p=none; rua=mailto:dmarc@acme.example Outbound mail is signed as your domain, not as the relay.
More than SMTP relay
JetEmail includes tracking, delivery events, separate credentials and inbound filtering alongside SMTP relay.
- Click and open tracking
No engagement data on a message once it leaves.
- Webhooks
Delivery, bounce and complaint events are not posted to your application.
- Custom sending domains
Sending is tied to the relay rather than to a domain you configure.
- Inbound spam filtering, quarantine and parse
Nothing accepts mail for your MX records.
- More than one SMTP user
One credential covers every server that relays through the account.
One server at a time
Both providers can be authorised in SPF while you test, so you can move one server without disturbing anything else.
- 01
Create a free JetEmail account and add the domain your servers currently relay through Mail Baby.
- 02
Publish the SPF and DKIM records so outbound mail is signed as your own domain rather than the transport host.
- 03
Create an SMTP user per server, control panel or customer instead of sharing one set of credentials.
- 04
Point one server's smarthost at JetEmail, send a test message, and check the delivery event and the DKIM result in the log.
- 05
Move the remaining servers, then decide separately whether to point MX at JetEmail for inbound filtering.
Mail Baby comparison questions
- Is JetEmail cheaper than Mail Baby?
- JetEmail costs less at most of the volumes shown above. Mail Baby's published pricing is $1 a month plus $0.20 per 1,000 emails, while JetEmail includes 50,000 emails on its $10 Pro plan and charges the same $0.20 per 1,000 overage rate.
- What is the difference in how mail is signed?
- JetEmail publishes a DKIM record for your domain and signs outbound mail as that domain. Mail Baby's FAQ says it passes through DKIM headers your own server sets and signs only the transport hostname, so if your servers do not sign for themselves, the signature is not yours.
- Does Mail Baby handle inbound mail?
- No. Point your MX records at JetEmail and inbound mail is filtered for spam, phishing and malware before delivery, with anything suspect held in quarantine. The first domain is free and each additional domain is $3 a month.
- Can I keep one shared credential?
- Yes. JetEmail also lets you create separate SMTP users with their own quotas and IP allow lists, so you can isolate each server, application or customer.
- How long are logs kept?
- 30 days on the JetEmail free plan and 120 days on paid plans, with the recipient's SMTP response on each line. Mail Baby's published retention is 60 days of message metadata.
- How do I move across?
- One server at a time, using the checklist above. There are integrations for cPanel and similar control panels and a WordPress plugin. For a hosting-provider migration, email sales@jetemail.com.
Compare JetEmail with other providers
Move your email to JetEmail
Add your domain, verify DNS and move each server or application when you are ready.