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A sender is a verified email address that SignatureAPI uses when sending signing requests to recipients. The sender’s name, email address, and organization appear in every email, and the sender’s address is used as the Reply-To address so recipient replies go directly to you. To manage your senders, go to Settings > Senders in the Dashboard.
Senders settings page
For technical details on the sender resource, see the Sender API reference.

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Default sender

Every account has a default sender. When you create an envelope without specifying a sender, SignatureAPI uses the default sender’s name and email address. To change the default, click Set default next to the sender you want to use. To specify a different sender for a specific envelope, include the sender property when creating the envelope through the API.

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Adding a sender

1

Open the Senders page

Go to Settings > Senders and click New Sender.
2

Enter the email address

Enter the name, email address, and organization for the new sender.
New sender dialog
3

Verify the email address

SignatureAPI sends a verification email to the address. The address owner must click the confirmation link to complete verification.
When you created your SignatureAPI account, a sender was automatically added using your account email address. That sender is already verified.

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Sender statuses

StatusDescription
Pending VerificationA verification email was sent. The address owner has not yet confirmed.
VerifiedThe address owner confirmed the email. This sender can be used on envelopes.
FailedVerification failed due to a bounce or error. This sender cannot be used.
Only senders with Verified status can be assigned to envelopes.

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Removing a sender

To remove a sender, go to Settings > Senders, select the sender, and delete it. You cannot delete the default sender — set a different sender as the default first.
Sender detail page
Removing a sender does not affect envelopes that were already sent using that address.

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How signing request emails work

All signing request emails are sent from noreply@signatureapi.com. This cannot be changed — SignatureAPI enforces a strict DMARC policy to protect email deliverability. Your verified sender address appears as the Reply-To address, so recipient replies go directly to you. The sender’s name and organization appear in the email body.
You need the Manage account senders permission to add or remove senders. See Dashboard Users for details on roles and permissions.