Developer platforms

Zoho ZeptoMail

Transactional email service sold in prepaid email credits.

Official documentation ↗Add to a comparison →

WHEN TO CONSIDER IT

Consider when prepaid sending credits fit irregular transactional volume.

WHAT TO CHECK FIRST

Credits expire after six months; current per-credit pricing was not readable in the reviewed page.

Editorial interpretation of the sourced facts; not hands-on testing.

Pricing

Billing model: Prepaid creditsSource ↗
Selected paid rateSelected plans, not equivalent baskets. USD unless stated; taxes, add-ons and regional terms may differ.: Needs confirmation
Review details
The current pricing page did not expose a readable credit price. Indexed older prices predate the announced July 1, 2026 pricing change and are not used as current quotes.
Reviewed 2026-09-08
Reviewed source 1 ↗
Free tier / trial: 10,000 transactional emails (one free credit), valid for one month.Source ↗
Overage: Purchase more credits or enable auto top-up.Source ↗
Data / attachment charges: Not stated in reviewed docs
Review details
Reviewed pricing does not establish a separate data or attachment transfer rate. This is not confirmation that all such charges are zero.
Reviewed 2026-09-08
Reviewed source 1 ↗
What counts as an email: 1 credit = 10,000 emails; each recipient countsSource ↗
Credit expiry: Credits expire 6 months after purchaseSource ↗

Reliability

Official incident historyProvider-reported status, not independent monitoring or a live health indicator.: Not stated in reviewed docs
Review details
A dedicated official incident-history page was not confirmed in the reviewed resources.
Reviewed 2026-09-08
Reviewed source 1 ↗Reviewed source 2 ↗
Contractual uptime SLAA service commitment, not observed uptime. Eligibility, exclusions and credit rules differ.: Not stated in reviewed docs
Review details
No email-specific numerical contractual uptime commitment was established in the reviewed materials.
Reviewed 2026-09-08
Reviewed source 1 ↗Reviewed source 2 ↗
Measured uptime: Not measured
Measured delivery latency: Not measured
Measured inbox placement: Not measured

Sending & features

HTTP API: AvailableSource ↗
SMTP relay: AvailableSource ↗
SDKs: Official SDK download through API documentation/dashboard; Python integration guide also available.Source ↗
Templates / editor: Pre-built templates and editorSource ↗
Webhooks: Delivery and recipient activity eventsSource ↗
Inbound processing: Not stated in reviewed docs
Review details
An inbound receiving or parsing workflow was not confirmed in the reviewed product documentation.
Reviewed 2026-09-08
Reviewed source 1 ↗Reviewed source 2 ↗
Campaigns / automation: Transactional only; promotional campaigns are not supported.Source ↗
Analytics: Open and click trackingSource ↗

Operations & security

Suppression management: Bounce-related suppressionSource ↗
Daily / request limits: API documented limits include up to 340 To, 100 Cc, 100 Bcc and 60 attachments (15 MB limit); account review required.Source ↗
Log / activity retention: Email logs and optional content: 60 days; extended storage available through support.Source ↗
Dedicated IP: Paid add-on, annual billing only; available in selected data centers.Source ↗
Hosting / region notes: Official security page lists US, Europe, China and India data centers; verify account DC availability.Source ↗
Sending domains: 100 domains/account, up to 50 Agents; 100 domains per Agent.Source ↗
Sender authentication: DKIM TXT and CNAME for Return-Path/SPF verification.Source ↗
SSO: Not stated in reviewed docs
Review details
External identity-provider SSO protocols and plan eligibility were not established for this product.
Reviewed 2026-09-08
Reviewed source 1 ↗Reviewed source 2 ↗
Support channels: 24/7 email and phone technical assistance.Source ↗
Setup requirements: Verify a sending domain before sending; associate it with an Agent.Source ↗

Resources

Website: Official resourceOpen ↗
Documentation: Official resourceOpen ↗
Pricing page: Official resourceOpen ↗

Sources & review scope

Reviewed 2026-09-08. Values are taken from official materials; plan restrictions may apply. Delivery speed, observed uptime and inbox placement have not been independently measured.

Official references (8)

How this comparison is maintained →