How to Change Your Sender Email Address in Klaviyo

Where to find and change your sender email in Klaviyo

Your sender email is the address that appears in the "From" field when someone receives your message. In Klaviyo, you change it in your account settings, not in individual campaigns. Go to your Klaviyo dashboard, click the menu icon (three horizontal lines) in the top left, then select Account. From there, click Settings, then Email. You'll see a field labeled "From Email Address" — this is where you enter the address you want to send from.

Klaviyo requires that the sender email address matches a domain you own or have permission to use. You cannot send from a Gmail, Yahoo, or other free email account unless you own the domain behind it. If you try to use an address you don't control, Klaviyo will reject it and ask you to verify ownership first.

Key Takeaways

Change your sender email in Account > Settings > Email, not in individual campaign settings.
The address must be from a domain you own or have explicit permission to use — free email accounts won't work unless you own the domain.
Klaviyo may ask you to verify domain ownership by adding a DNS record or uploading a file to your website.
Changing your sender email affects all future campaigns unless you set a different address for a specific campaign.
Your sender name (the text that appears next to the email address) is a separate setting you can customize per campaign.

Verifying domain ownership when Klaviyo asks

If you're sending from a domain for the first time, Klaviyo requires you to prove you own it. The system will offer two verification methods: DNS record or file upload. The DNS method is faster if you have access to your domain's DNS settings (usually through your web host or domain registrar like GoDaddy or Namecheap). Klaviyo gives you a specific DNS record to add — you paste it into your registrar's DNS management panel, and Klaviyo checks for it within a few minutes.

If you don't have DNS access or prefer not to touch those settings, use the file upload method instead. Klaviyo generates a small text file that you upload to your website's root directory. Once it's live, Klaviyo checks that it exists and marks your domain as verified. This method takes longer because you have to wait for the file to be accessible online, but it works if you only have FTP or file manager access to your site.

The difference between sender email and sender name

Your sender email address and sender name are two separate things. The email address is what goes in the "From" field technically — it's what mail servers read and what appears in some email clients. The sender name is the human-readable text that appears next to it in most inboxes, like "Sarah at Acme Co" or "The Acme Newsletter Team." You set the sender name in your campaign settings, not in your account settings, which means you can use different names for different campaigns while keeping the same sender email.

This matters because recipients see the sender name first. A clear, recognizable name increases the chance they'll open your message. You can change the sender name for every campaign, but changing the sender email address itself affects all campaigns going forward unless you override it in a specific campaign's settings.

Changing sender email for a single campaign

If you want to send one campaign from a different email address than your account default, you can override it at the campaign level. When you're building a campaign in Klaviyo, go to the From section in the campaign editor. You'll see your default sender email listed. Click on it to expand the options, and you can select a different verified email address from a dropdown menu. This change applies only to that one campaign — your account default stays the same.

You can only use email addresses you've already verified in your account settings. If you want to send from an address you haven't used before, you have to verify it in Account > Settings > Email first, then come back to the campaign and select it from the dropdown.

What happens to your sender email if you change it

When you change your default sender email in account settings, all future campaigns will use the new address unless you override it at the campaign level. Campaigns you've already sent are not affected — they stay associated with the email address they were sent from. If you're switching to a new domain or email address, your recipients will see the change starting with your next campaign, which can affect open rates if the new address looks unfamiliar to them.

Some email providers track sender reputation by email address, so switching addresses can temporarily affect your deliverability. If you've built up a good sending history with one address, moving to a brand new one means you're starting over with that reputation. For this reason, many businesses keep their original sender email even after switching domains, or they warm up a new address by sending to engaged subscribers first before sending to the full list.

Common problems when changing sender email

The most common issue is trying to send from an address you haven't verified. Klaviyo will show an error message saying the address is not verified and won't let you save the campaign. The fix is to go back to Account > Settings > Email, add the new address, complete the verification process (DNS or file upload), and then return to your campaign.

Another frequent problem is using an email address from a domain you don't control. If you're working for a company but don't have access to the domain's DNS settings or website, you'll need to ask someone with those permissions to complete the verification step. You can't verify a domain you don't own, and Klaviyo has no way around this — it's a requirement from email providers to prevent spam.

If you change your sender email and suddenly see a drop in open rates or an increase in bounces, your new address may not have built up sender reputation yet. Check your bounce report in Klaviyo to see if the issue is hard bounces (invalid addresses) or soft bounces (temporary delivery problems). Hard bounces mean your list has bad data; soft bounces usually resolve on their own as your new address builds reputation.

Sender email and your privacy

Your sender email is visible to everyone who receives your messages, so it's worth thinking about what address you want to be public. Many businesses use a generic address like "hello@yourcompany.com" or "newsletter@yourcompany.com" rather than a personal email, which keeps individual staff members' inboxes separate from marketing mail and gives the business more flexibility if people change roles.

Recipients can reply to your sender email, so make sure it's an address someone actually monitors. If you use a no-reply address, some email clients will still let people reply, and those replies will bounce back or go unread. If you want to prevent replies, that's a setting in your campaign editor, not in the sender email itself — Klaviyo lets you mark campaigns as "no-reply" separately.

Frequently Asked Questions

Can I send from a Gmail address in Klaviyo?

Only if you own the domain behind it. You cannot send from a standard Gmail account (yourname@gmail.com) through Klaviyo. If you own a domain and use Gmail to manage it (like through Google Workspace), you can send from that domain's email address after verifying it in Klaviyo.

What if I don't have access to my domain's DNS settings?

Use the file upload verification method instead. Klaviyo generates a text file that you upload to your website's root directory. This works if you have FTP or file manager access. If you have neither, ask whoever manages your website to upload the file for you.

Will changing my sender email hurt my deliverability?

Possibly, but only temporarily. Email providers track sender reputation by address, so a brand new address starts with no history. Send to your most engaged subscribers first to build reputation quickly. After a few weeks of consistent sending, deliverability usually stabilizes.

Can I use different sender emails for different campaigns?

Yes. Set a default sender email in your account settings, then override it for individual campaigns in the campaign editor. You can only use addresses you've already verified in your account.

What's the difference between sender email and reply-to address?

Sender email is what appears in the "From" field. Reply-to address is where replies go — you can set them to different addresses. In Klaviyo, you set the reply-to address in your campaign settings, separate from the sender email.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.