Cookie Policy
Last updated: 15 November 2026
This policy explains how Mailsinger (mailsinger.com), operated by Mailsinger, uses cookies and similar technologies. Read it together with our Privacy Policy.
What are cookies?
Cookies are small text files a website stores in your browser. Similar technologies, such as local storage and IndexedDB, let a site keep information on your device. Some are needed for a site to work; others help measure usage or show ads.
How we use them
- Strictly necessary and functional: to save your designs and preferences on your device, remember your consent choices and keep the site secure. These do not need consent.
- Analytics: Google Analytics, to understand how the site is used.
- Advertising: Google AdSense, to show ads that keep the tools free, and to measure them. Ads may be personalised only where you have agreed or consent is not required by law.
In the EEA, UK and Switzerland, analytics and advertising cookies are not set until you agree in the consent message. Until then, Google may receive limited, cookieless signals (Google Consent Mode). Elsewhere they are used by default, and you can opt out as described below.
Storage set by Mailsinger
We do not set any cookies ourselves. The builders use your browser's storage to keep your work on your device. This information never leaves your device and is never sent to us.
| Name | Where | Purpose | Lasts | Type |
|---|---|---|---|---|
theme | Local storage | Remembers whether you chose the light or dark theme. | Until you clear it | Functional |
mailcraft:signature:v1 | Local storage | Saves your signature design on your device so it is there when you return. | Until you clear it | Strictly necessary for the tool |
mailcraft:newsletter:v3 | Local storage | Saves your newsletter design on your device. | Until you clear it | Strictly necessary for the tool |
mailcraft (assets) | IndexedDB | Stores the images you upload into the builders, on your device only. | Until you clear it | Strictly necessary for the tool |
Third-party cookies
These are set by the services we use. Names and durations are controlled by those companies and can change; this list shows the main ones.
| Name | Set by | Purpose | Lasts | Type |
|---|---|---|---|---|
_ga | Google Analytics | Distinguishes visitors so we can count them. | 2 years | Analytics |
_ga_3L1RRZ0Y5J | Google Analytics | Keeps track of your session on this site. | 2 years | Analytics |
__gads, __gpi | Google AdSense | Ad delivery, frequency capping and measuring ad performance. | Up to 13 months | Advertising |
__eoi | Google AdSense | Security and fraud prevention for ads. | Up to 6 months | Advertising |
IDE, DSID, test_cookie | Google (doubleclick.net) | Personalised advertising and ad measurement across sites (only with consent where required). | Up to 13 months | Advertising |
FCCDCF, FCNEC | Google consent message | Stores your cookie and privacy choices. | Up to 13 months | Strictly necessary |
__cf_bm | Cloudflare | Bot protection; may be set to keep the site secure. | 30 minutes | Strictly necessary |
When you click a link to a partner website (including affiliate links), that website may set its own cookies to record the referral. Those cookies are governed by the partner's own cookie policy.
Managing your choices
- Consent message: if you are in a region where consent is required, use the Cookie settings link (also in the footer) to review or change your choices at any time.
- Your browser: you can block or delete cookies and site data in your browser settings. Clearing site data will also delete designs saved in the builders, so download or save them first.
- Google ads: manage personalised ads at Google Ad Settings; opt out of many advertising vendors at aboutads.info or youronlinechoices.eu.
- Google Analytics: install the Google Analytics opt-out browser add-on.
- Global Privacy Control: where supported by law, we treat a GPC signal as a request to opt out of personalised advertising.
Blocking cookies will not stop the builders from working, as long as your browser allows local storage for this site.
Changes
We will update this policy if we change the cookies we use. The "last updated" date shows the current version.
Contact
Questions about cookies? Email hello@mailsinger.com.