The EmailVerifyerAPI Blog

Email deliverability, decoded.

Field notes on email verification, list hygiene and getting into the inbox, written by the small team building EmailVerifyerAPI in Montréal.

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The 2% rule: what Gmail and Yahoo now expect from every sender

In 2024 the two biggest inbox providers drew a hard line on bounce rates. Here’s what the 2% threshold actually measures, why it punishes whole sending domains, and the three habits that keep you under it.

Sofia Nguyen Deliverability Lead

May 26, 2026 · 8 min read

We've just started publishing - more articles are on the way. In the meantime, read our first post above.

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Short, practical notes on keeping your lists clean and your mail in the inbox. No spam. We would be embarrassed.

Email deliverability, decoded.

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The 2% rule: what Gmail and Yahoo now expect from every sender

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Deliverability tips, once a month.