Sponsored Emails in Gmail: Why Ads Land in Your Inbox and How Advertisers Buy Them in 2026

You open the Promotions tab and the top message is from a brand you never subscribed to. It has a sender name and a subject line, and it's marked as an ad. That's a sponsored email: not an email at all, but a Google ad dressed as one.

Gmail has run these ads for years, and they're one of the more contested formats Google sells. In September 2025 France's data regulator fined Google €325 million over them. Here's why they show up, what Google knows when it targets them, how to switch the targeting off, and how advertisers and affiliates buy the placement.

What a sponsored email in Gmail is

It's an ad that sits in your inbox list and looks like a message. The French regulator CNIL describes it plainly: Google displayed "advertisements in the form of emails among the emails in the 'Promotions' and 'Social' tabs of the Gmail messaging service". Google's own advertiser documentation calls the same inventory "the Gmail social promotions tabs".

It isn't sent to you. Nobody has your address and nothing arrives in your account. The ad is shown in your list the way a banner is shown on a page, and clicking it opens the advertiser's offer.

Why you're getting ads in your Gmail

Gmail is free because it's ad-supported. Google's help page says the ads are selected automatically and shown "based on your online activity while you're signed into Google". In practice that means your searches, YouTube viewing and other activity on your Google Account.

Google says it doesn't read your emails to target them. "Gmail does not scan or read your messages to show you ads," the same help page says. Google stopped scanning consumer Gmail for ads in 2017. It also says it doesn't target Gmail ads on sensitive information such as race, religion, sexual orientation, health or sensitive financial categories.

How to stop or reduce sponsored emails

You can turn off personalization, not the ads. Google's instructions: go to the Ads Settings page and turn off Ads Personalization. After that you may still see Gmail ads, but they won't be based on the personal data Google has associated with your account.

The only way to remove them is a paid Google Workspace account. Google's Workspace edition comparison lists "Gmail ads turned off" in its Business, Enterprise and Education editions. Free Gmail accounts keep the ads.

Why Europe treats inbox ads as email marketing

The EU's top court ruled on this format in 2021. In case C-102/20, StWL v eprimo, decided on November 25, 2021, the Court of Justice of the EU found that showing advertising messages in an email inbox "in a form similar to that of a real email" counts as using electronic mail for direct marketing under the ePrivacy Directive. Direct marketing by email needs the user's prior consent.

France then fined Google €325 million. On September 1, 2025, after a complaint filed by the privacy group noyb in August 2022, the CNIL fined Google LLC €200 million and Google Ireland €125 million for showing ads between Gmail users' emails without consent and for placing advertising cookies without valid consent when users create a Google account. CNIL counted 53 million people in France who had seen the ads and gave Google 6 months to stop showing them without prior consent.

How advertisers buy Gmail ads in 2026

Gmail inventory is sold through Demand Gen campaigns. Google describes Demand Gen as campaigns that run across YouTube (including Shorts), Discover, Gmail, Maps and the Google Display Network. It replaced Discovery ads, and active Discovery campaigns were upgraded to Demand Gen automatically.

You can choose Gmail as a channel. Demand Gen's channel controls let you pick where your ads appear across YouTube, Gmail, Discover, Maps and the Display Network, and reports can be segmented by network, with Gmail as its own line. Google still encourages advertisers to use the full inventory, so expect narrow channel choices to limit delivery.

Image specs for Demand Gen, which Gmail placements draw on:

Targeting works on audiences, not inbox contents. Demand Gen uses Google's audience segments, including lookalike segments built from people who bought from you, visited your website or watched your YouTube channel, and optimizes for clicks, conversions or conversion value. There's no way to target people by what's in their emails.

Gmail ads for affiliates: what passes and what doesn't

The landing page rules are Google's usual ones, and they're strict on affiliates. Google's "Insufficient original content" policy disapproves "bridge pages, doorways, gateways, or other intermediate pages that are only used to link to other sites", and destinations with little original content or more ads than content. An affiliate who sends Gmail clicks to a thin prelander that only forwards to the offer will be disapproved.

What works is the same as on any Demand Gen surface. A real landing page with its own content, clear product images, and a conversion goal the algorithm can learn from, tracked with a pixel or postback into Google Ads. For e-commerce affiliates and stores, product feed formats can run in Gmail too.

Watch the costs per surface. Because Demand Gen spreads a single budget across several surfaces, check the network breakdown before you scale: Gmail clicks can convert very differently from YouTube Shorts views paid out of the same campaign.