Email Clients with an Affiliate Program
Experience robust security, multiple accounts, chat, and fast search with efficient Gmail email management in a streamlined interface.
The Proton Partners Program enables affiliates to promote Proton's encrypted email, VPN, and other privacy services, earning commissions up to 100%, with marketing support and high revenue share.
Earn 25% commission on license sales generated via unique tracking links. Affiliates get dashboard for tracking clicks, sales, and earnings. Provides banners, text links, deep reporting.

Zoho's direct affiliate program allows individuals, businesses, industry bodies, trade associations, educators, publishers, influencers, and Zoho customers to recommend Zoho products, including Zoho Mail, through tracked affiliate links. Affiliates receive access to an affiliate portal and can promote through websites, social posts, email newsletters, videos, and other digital forums. Qualified referrals can earn commissions for up to 12 months, with the official general program describing a 15% share of revenue Zoho receives and the agreement allowing up to 20% according to affiliate tier. Referred customers may receive Zoho Wallet credits under some regional program pages.

Mailfence's direct affiliate program lets approved partners promote its privacy-focused email and collaboration service. The program is intended for quality partners who support digital privacy, including bloggers and privacy-oriented reviewers. Mailfence says partners receive commissions when their audience purchases a paid plan, can receive a free upgrade to an Entry account, and may be invited to beta previews of new features. The official process is to email affiliate@mailfence.com with a link to the applicant's website, agree to the terms, receive tracking links and promotional material, and begin promoting after approval.

Infomaniak allows publishers and individuals with an online audience to recommend Infomaniak products through tracked affiliate links. Eligible promotional channels described by Infomaniak include websites, articles, comparison pages, YouTube channels, newsletters, LinkedIn communities, Instagram, TikTok, forums, and other online audiences. Affiliates can create links to Infomaniak website pages by adding their unique identifier. The program pays commissions on purchases and renewals made by new customers who clicked an affiliate link, with a 365-day attribution period and performance-based rates up to 50%.

StartMail's affiliate program allows publishers and privacy-focused promotional partners to refer visitors to StartMail, a private email service, through tracked referral links. Approved affiliates receive access to custom links, marketing assets, reporting tools, and an analytics dashboard. StartMail describes the program as free to join and says it partners with publishers and creators that raise awareness of email privacy.
Earn commissions up to $50 per activated sign up plus 20% of year one revenue for each referral you drive. Successful conversion: Net new workspaces that upgrade to a paid Plus or Business plan within 180 days of clicking your affiliate link on last-click basis. Access to Affiliates Resource Center with promotional best practices, guides, videos. Managed through PartnerStack.

Superhuman Mail users can refer new users from within the app (“Refer to Superhuman” in the bottom‑right question‑mark menu or via Command‑K on Mac); when a referred person redeems the referral for a 30‑day free trial, both the referrer and the new user receive 30 days of Superhuman free. There is no cash payout or external tracking link.