Mailchimp

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Intuit Mailchimp — newsletter and marketing automation, dominant SMB ESP in North America and EU.

23,367SPF-authorising domains

3.751%of all SPF domains in Tranco top-1M

402distinct TLDs

2026-04-28snapshot date

Historical Share

com — 11,941 (51.1%)

org — 1,994 (8.5%)

nl — 631 (2.7%)

co.uk — 600 (2.6%)

net — 484 (2.1%)

de — 467 (2.0%)

com.au — 408 (1.7%)

io — 338 (1.4%)

ca — 303 (1.3%)

cz — 272 (1.2%)

it — 246 (1.1%)

fr — 240 (1.0%)

be — 237 (1.0%)

com.br — 226 (1.0%)

dk — 214 (0.9%)

se — 213 (0.9%)

ch — 205 (0.9%)

edu — 183 (0.8%)

es — 167 (0.7%)

no — 164 (0.7%)

co — 163 (0.7%)

eu — 163 (0.7%)

ru — 162 (0.7%)

org.uk — 152 (0.7%)

gr — 111 (0.5%)

fi — 109 (0.5%)

co.nz — 107 (0.5%)

ie — 97 (0.4%)

at — 92 (0.4%)

sk — 87 (0.4%)

Showing 100 of 23,367 domains. Sample sorted by length (shortest first).