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An alias is a masked email address on a Maski domain. Mail sent to it forwards to your real destination address, so the sender never learns where their message actually lands. Use a different alias for every service and you can see who leaked or sold your address, then shut off that one alias without disturbing the rest.

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Address format

An alias is a local part plus a domain, for example shopping@alias4me.in. The local part must:
  • start with a letter or digit,
  • be 3 to 64 characters long,
  • contain only lowercase letters, digits, and . _ -.
Local parts are case-insensitive. Priya.Work and priya.work are the same alias.

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Custom or random

You choose the local part yourself. It is first-come, first-served on shared Maski domains, so a readable name like newsletters or github is yours until you retire it. Prefer something unguessable? Generate a random alias instead. Maski offers two styles:
  • a random string, for example k7f2q9x4mn3p,
  • an adjective-and-noun pair with trailing digits, for example swiftotter3947.
A random suggestion reserves nothing. Regenerate as many as you like, then claim the one you want.

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Reserved names on shared domains

On shared Maski domains, some local parts are unavailable. Role addresses such as admin, support, postmaster, abuse, and billing are reserved, and Maski blocks names that impersonate known brands. This protects recipients from aliases that look official. These restrictions apply only to shared domains. On your own custom domain you can claim any local part, including admin.

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Free plan limit

The free plan includes 3 aliases. Pro raises the limit. See billing and plans for the current numbers.

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Lifecycle

An alias moves through a small set of states:
1

Active

The alias receives and forwards mail.
2

Paused

Mail is silently dropped. Nothing is forwarded and the sender sees no error. Resume at any time to start forwarding again.
3

Pending retirement

You have asked to retire the alias. It stops forwarding immediately and enters a 30-day grace period during which you can cancel.
4

Retired

The address is gone for good. On a shared domain a retired local part is never reclaimable, by you or anyone else, so a service can never be re-pointed at a stranger.
On your own custom domain you can reclaim a local part you previously retired, because you control the whole namespace.