GMX

GMX is the largest mainstream provider in this directory by user base, and its free tier reflects that scale: 65GB of storage, up to 10 aliases, spam filtering and antivirus scanning, all at no cost with advertising. For anyone whose main objection to Gmail is the company rather than the price, GMX is the closest like-for-like swap here, with storage well past what any of the specialist paid providers offer for free.

GMX is operated by 1&1 Mail & Media GmbH, part of United Internet, headquartered in Montabaur, Germany, which places it under German and EU law. An ad-free upgrade, ProMail at €3.99 a month or TopMail at €6.49, removes the advertising and adds more storage, with a one-month free trial to test it before paying.

GMX makes no privacy claims beyond general European data protection standards, offers no PGP or zero-access encryption, and runs on advertising by default, which puts it at the opposite end of this category from Tuta or Proton Mail. It belongs on this list as a legitimate, independently German alternative to Gmail's storage and price point, not as a privacy upgrade over it.

What GMX does well

• 65GB of free storage, more than any paid provider here
• Up to 10 aliases on the free tier
• Built-in spam filter and antivirus scanning
• Ad-free upgrade with a one-month free trial
• Large, established German operator (1&1 Mail & Media)

Where GMX falls short

• No PGP or zero-access encryption
• Free tier carries advertising
• No stated commitment against scanning mail content
• Privacy positioning is far weaker than the rest of this category

Standout feature. GMX offers more free storage than any other provider in this directory, but none of the privacy commitments that define the rest of the category.