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Domains and delivery

Choose the sender address

Who a simulation appears to come from, and where replies go.

Written By Ignace

Last updated 21 days ago

Because Fallax places simulations directly in the inbox, the From address can use any domain. That includes a lookalike of your own domain or the domain of a vendor you work with, which is exactly what real attackers do.

Where you set it

  • In the email template: the From name and From address. The domain picker suggests the brand's own domain and your verified domains, but you can type any domain.

  • In the campaign: the Sender domain field in the Email step.

Replies

If the sender domain is not one you verified, replies go to a Fallax reply-to address instead of a real mailbox. Nobody outside your organisation receives them.

What is not allowed

Government, law-enforcement and court identities (for example .gov addresses or police forces) are blocked as senders. Fallax refuses them in the editor and again at send time. Some well-known brands show a caution but can still be used.