About Double Opt-in
To help you build a better audience, Mailchimp confirms that subscribers signed up to receive your emails. Learn the benefits of the opt-in process and how it works.
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When your audience is double opt-in, everyone who signs up will receive a follow-up email with a confirmation link to verify their subscription. If a newly subscribed contact doesn't receive the opt-in confirmation email, there are a few things that could be happening.
In this article, we'll go over some common issues with confirmation emails and give you some tips to help you troubleshoot.
Note
Beginning February 2024, Gmail and Yahoo will require a custom authentication and a published Domain-based Message Authentication, Reporting & Conformance (DMARC) record for anyone sending more than 5,000 emails to Gmail or Yahoo addresses in a 24-hour period. To prevent your emails from bouncing, we strongly recommend authenticating your email domain and configuring DMARC.
Also, if you use a free email service like Gmail or Yahoo for your From email address, we strongly recommend you switch to an email address from a private domain, like the one you use for work or for your website.
For more information about custom authentication and DMARC, check out About Email Domain Authentication.
Email delivery times vary depending on server traffic, so don't assume something is wrong if one of your subscribed contacts got their confirmation email instantly and one didn't. We recommend waiting a few hours before you do additional troubleshooting or seek support.
Sometimes, there are problems with the receiver's email server.
Mailchimp sends an email on your behalf during the opt-in process, which could cause problems depending on how your email server is set up.
If no one receives confirmation emails and you ruled out a server issue, there could be something wrong on your signup form.
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To help you build a better audience, Mailchimp confirms that subscribers signed up to receive your emails. Learn the benefits of the opt-in process and how it works.
With Mailchimp, you can choose to send a final welcome email for confirmed signups. Learn how to turn it on or off.
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