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How 37signals does email marketing

SaaS & Tech

1 campaign · 37signals.com · RSS

A catalog of ideas — signals — that drive us.

37signals has not been archived long enough to judge how often it sends. Its median subject line runs 38 characters.

Median subject
38 chars
Median words
42
Carry a promo code
0%

What 37signals sends

Mostly Welcome & Onboarding (100% of campaigns).

The stack behind the sends

The sending platform has not been detected yet.

Nothing detected yet.

Domain authentication

DMARC: quarantine BIMI

Mail failing authentication is sent to spam rather than delivered.

A typical 37signals campaign carries 42 words and 1 images.

How this is measured

Every figure comes from real 37signals emails captured in Inbox Archive, not from a survey or a vendor report. Day and time charts appear once a brand has enough scheduled campaigns archived to plot them honestly. Compare against every brand we track, or browse 37signals campaigns.