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Email marketing in India: database size, deliverability, and ROI in 2026

How big should an email database be to drive results in India? Real ROI benchmarks, deliverability tips, and how DGTG's 50M+ database powers campaigns.

Email marketing in India: database size, deliverability, and ROI in 2026

Email marketing in India still delivers ₹40–₹50 of revenue per ₹1 spent for mature D2C and BFSI senders, provided your database is clean, your domain is warmed, and your content is relevant. DGTG's 50M+ opted-in email database is one of the largest in South Asia.

Database size benchmarks

Early-stage D2C: 50K–250K subscribers. Mid-stage: 500K–2M. Scale brand: 5M–20M. Premium BFSI / Auto: 1M–10M (smaller but higher LTV). DGTG database: 50M+.

Deliverability essentials

SPF, DKIM, DMARC must be set up. Warm a new sending domain over 4–6 weeks. Keep bounce rate < 2% and complaint rate < 0.1%. Avoid spam-triggering subject lines.

Open and click rates 2026

India B2C average open rate: 18–28%. Top quartile: 35%+. Click rate: 2.5–6%. Apple Mail Privacy Protection inflates open rates artificially, track clicks as ground truth.

When to use DGTG's database

For new-product launches, lead-gen blasts targeting specific demographics, or lookalike acquisition. We segment by 200+ attributes including geo, income bracket, age, intent signals.

More growth guides

Frequently asked questions

How fast can DGTG send to 1 million emails?

Our warmed infrastructure can deliver 1M emails within 4–8 hours while maintaining high inbox placement. Larger blasts (10M+) are typically split across 24–48 hours for deliverability.

Is buying an email list legal in India?

India doesn't have GDPR-level consent rules, but the IT Act and SPDI Rules apply. DGTG only uses double-opted-in data with clear consent. We never sell raw lists, we deliver campaigns on behalf of clients.

What's a fair cost for email campaigns?

Custom audience email blasts run ₹0.40–₹1.20 per email delivered. Lower for high-volume retail offers, higher for targeted BFSI / B2B sends.