Allow-listing AccessNow Notification Email Address

To ensure AccessNow notification emails are delivered directly to recipients' inboxes without triggering "external sender" warnings or spam alerts, you can allow-list the service email address.

AccessNow notifications come from the [e-mail] email address.

The organisation’s IT team or email administrator should be able to add the AccessNow email address or domain to the company-wide allowlist or safe-senders list. Ensure their approval and proper security assessment are in place.

This is the most reliable way to avoid "external sender" warnings when organisations use Microsoft 365, Google Workspace, Exchange, or another enterprise email security tool.

Security consideration: While allow‑listing can improve email delivery, your organisation should independently assess the security implications before applying it. Any whitelisting is performed at your organisation’s own discretion and responsibility, in line with internal security policies.