2024 Google & Yahoo Bulk Email Sender Guidelines - Klaviyo SG
2026-03-10 20:53 Diff

The new requirements will affect everyone. While “bulk senders” are most susceptible to these changes, don’t let that terminology trick you into believing the new requirements don’t apply to you.

To be classified as a bulk sender, you need to send more than 5K emails per day. That might sound like a lot. It isn’t.

Do some quick maths with us:

  • How many new subscribers are you acquiring per day, and as a result dropping into your welcome series?
  • How often does that welcome series send a new message, and for how long?

Imagine you have 50 new subscribers per day. That’s 50 messages per day. And, say your welcome series is 3 emails long. Those two additional emails in the series add another 100 emails going out over the course of a few days.

Now, since you’re gaining new subscribers daily, multiply those 150 emails by each business day in a week: 150 x 5 = 750 potential emails per week.

This scenario doesn’t include your:

  • Transactional or post-purchase flow
  • Abandoned cart flow
  • Browse abandonment flow
  • Win-back flow
  • Repeat purchase flow
  • VIP flow
  • Any campaigns

Considering the volume of automated messages recommended for a healthy retention marketing program, most online retailers will hit 5K emails per day at least once a month, especially during peak times.

This is why Klaviyo says these new requirements apply to all online retailers.

Want to learn more? Check out our guide for what these requirement changes mean for your business.