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Specification sheet · Communication APIs (CPaaS)

Dollu Ltd

dollu.com

[email protected]

+91 777-500-2222

Email API & SMTP Relay

Transactional and bulk email through a REST API or SMTP relay - with authentication, dedicated IPs, deliverability tooling and analytics that show you where every message went.

Transactional and bulk email via REST API or SMTP relay: DKIM/SPF/DMARC set-up, dedicated IPs with warm-up, templates, webhooks, analytics and address validation.

Ways in: REST API and SMTP
2
Median transactional delivery
< 5 s
API availability
99.99%

At a glance

  • REST API (POST /v2/emails) and SMTP relay on smtp.dollu.com
  • Guided DKIM, SPF, DMARC and BIMI set-up with DNS verification
  • Shared reputation pools or dedicated IPs with automated warm-up
  • Templates with versioning, batch sends, scheduling, attachments
  • Webhooks: delivered, opened, clicked, bounced, complained
  • Address validation endpoint for lists and sign-up forms
  • Suppression lists, feedback loops and reputation dashboard
  • Region-pinned sending: EU, US, India, Singapore

Typical use cases

  • 01Transactional email for SaaS and apps
  • 02E-commerce receipts and shipping
  • 03Financial statements and alerts
  • 04Newsletters and campaigns
  • 05Legacy systems over SMTP

Technical & commercial specifications

APIREST/JSON at api.dollu.com/v2/emails; OpenAPI 3.1; SDKs for six languages
SMTPsmtp.dollu.com; ports 25, 587 (STARTTLS), 465 (TLS); AUTH with API key
AuthenticationDKIM 2048-bit, SPF, DMARC, BIMI; guided DNS set-up and monitoring
IPsShared reputation pools; dedicated IPs from 100k msgs/month; automated warm-up
ThroughputBatches of 5,000 recipients per request; 1M+ messages per hour on request
Webhooksprocessed, delivered, deferred, bounced, opened, clicked, complained, unsubscribed
ValidationSyntax, MX, disposable, role and mailbox checks; bulk lists up to 1M rows
Data residencyEU (Frankfurt, Amsterdam), US (Ashburn), India (Mumbai), Singapore
RetentionContent 0–30 days configurable; event logs 90 days; GDPR erasure endpoint
BillingPer 1,000 messages with volume tiers; dedicated IPs monthly; validation per lookup

Talk to Dollu about Email API

Send us your destinations, volumes, sites or use case and we will return a proposal, pricing and a technical plan within one business day. Test credentials and the full service description and SLA document are available on request.

Contact sales online
Sales
[email protected]
Phone
+91 777-500-2222
Web
dollu.com
NOC
[email protected] · 24×7

Dollu Ltd · 2403A, Iconic Corenthum, Sector 62, Noida 201301, India. This sheet summarises the standard service; specifications may vary by country and are confirmed in the service order.

Online version: https://dollu.com/services/cpaas/email-api