MailChannels

forwarder 🇨🇦 CA

Canadian outbound relay used by Cloudflare and many hosting providers.

6,691SPF-authorising domains

1.074%of all SPF domains in Tranco top-1M

285distinct TLDs

2026-04-28snapshot date

Historical Share

com — 3,666 (54.8%)

org — 536 (8.0%)

net — 419 (6.3%)

com.br — 131 (2.0%)

co.uk — 102 (1.5%)

com.au — 95 (1.4%)

co.za — 68 (1.0%)

nl — 63 (0.9%)

ca — 53 (0.8%)

id — 51 (0.8%)

ac.id — 47 (0.7%)

com.ar — 42 (0.6%)

in — 41 (0.6%)

gr — 41 (0.6%)

io — 40 (0.6%)

cl — 37 (0.6%)

co.id — 36 (0.5%)

es — 33 (0.5%)

com.mx — 33 (0.5%)

info — 29 (0.4%)

pe — 28 (0.4%)

pk — 27 (0.4%)

co — 27 (0.4%)

xyz — 27 (0.4%)

org.uk — 26 (0.4%)

co.il — 26 (0.4%)

ro — 25 (0.4%)

pl — 25 (0.4%)

ch — 22 (0.3%)

mx — 20 (0.3%)

Showing 100 of 6,691 domains. Sample sorted by length (shortest first).