Why can't my emails get an ‘Unsubscribe’ button at the top of email?
You know that blue unsubscribe button by inbox provider like gmail.
Like the one shown in image below:

Why can't my emails get an ‘Unsubscribe’ button at the top of email?
You know that blue unsubscribe button by inbox provider like gmail.
Like the one shown in image below:

Best answer by Byrne C
You can check transactional email status on an email by going to its flow, and then clicking on the email in the flow. On the right, a panel will pop up, and if the message is transactional, you’ll see that a box is checked confirming it’s transactional. Flows don’t necessarily need a Placed Order trigger to have their emails marked as transactional, but those are the most common types of transactional messages.
That being said, after looking into this a bit more, I found that there are occasions where Google will opt to not display the Unsubscribe button at the top of emails. Note that Klaviyo will always put the Unsubscribe link into your email headers automatically, so even in cases you don’t see this button, the email is still compliant; Google just isn’t deciding to display the button.
While Google doesn’t always say exactly why they may hide the unsubscribe button, this sometimes happens due to poor sender reputation. I’d recommend checking your deliverability tab in Klaviyo to see whether you have healthy open rates, and low unsubscribe, bounce and spam complaint rates, and taking note of your deliverability score.
If these numbers aren’t what you’re expecting them to be, we advise that you suppress never engaged profiles (article explaining how to do this). Doing so will ensure that you’re not sending as many emails to those who aren’t engaging with them, and in turn, your sender reputation will improve, and Google will be more likely to display the unsubscribe button.
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