33Mail vs MailMask

33Mail creates private email aliases and forwards messages sent to them to an existing email address. An alias is created automatically when email first arrives, and users can block an alias to stop receiving its messages. With anonymous replies enabled, users can reply to forwarded mail through 33Mail; the service removes header information relating to their actual email address. Premium accounts can use a custom domain by pointing its MX record to 33Mail. The service is web-based and also lists a browser extension. Lite is free and includes 10MB monthly bandwidth, with alias creation limited to five per 30-minute period. Premium costs $1 a month and includes 50MB monthly bandwidth, 20 anonymous replies per day, one custom domain, and one additional username. Pro costs $5 a month; Enterprise costs $50 a month. Attachments up to 10MB count toward bandwidth, which is measured over a rolling 30-day window. 33Mail says it warns users who exceed their bandwidth limit and treats dropping emails as a last resort. Its terms say user data is used to provide the service and is not shared with third parties except as needed for law enforcement requests. Brothers Ian and Andrew Clarke conceived the service, which forwarded its first email in August 2010.

MailMask creates unique email aliases that forward incoming messages to an existing mailbox. Aliases can be created, disabled, or removed; disabling one immediately stops new mail from being accepted. MailMask is not a mailbox or email-provider replacement, and it cannot send messages from alias addresses. The service says it processes email only for forwarding and does not retain message content longer than technically necessary for delivery. Its infrastructure and data handling remain within Europe, under European law including the GDPR. MailMask says it uses no advertising, analytics, or third-party tracking, and does not sell or share user data. The Free plan costs nothing for aliases and forwarding, with no price or usage limits stated. The operator describes it as a personal risk-reduction layer, not for critical, account-recovery, or mission-critical communication. Availability is best-effort, and uninterrupted service is not guaranteed.