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Trend Micro Email Security approves or blocks email messages from the specified sender for the entire organization, a managed domain, or a specific recipient address in your managed domains.
For example, after adding spammerbob@examplespamdomain.com to the blocked list for your managed domain mydomain.com, Trend Micro Email Security only blocks the email messages sent from spammerbob@examplespamdomain.com to addresses in the mydomain.com domain. Trend Micro Email Security still scans and possibly passes email messages sent from spammerbob@examplespamdomain.com to your other managed domains.

Procedure

  1. Click the Approved Senders or Blocked Senders tab, and click Add.
  2. On the Specify Target Recipient dialog box that appears, specify the target recipient of the sender you want to add and click Next.
    • My organization
    • Managed domain
    • Email address
  3. In the Add Approved Senders dialog box, type a sender in the second field. A sender can be a specific email address or all addresses from a specific domain or subdomain.
    • Filter a specific email address by typing that email address.
    • Filter all addresses from a domain by using an asterisk (*) to the left of the at sign (@) in the email address. For example, *@example.com will filter all email addresses in the example.com domain.
    • Filter all addresses from a subdomain by using an asterisk (*) to the left of the at sign (@) and also using an asterisk (*) in place of the subdomain in the email address. For example, *@*.example.com will filter all email addresses in all subdomains of the example.com domain.
    The following table displays format examples that are valid or not valid:

    Format Examples for Approved Senders and Blocked Senders

    Valid
    Not Valid
    name@example.com
    name@info.*.example.com
    name@info.example.com
    		name@example.com.*
    name@*.example.com
    *name@info.example.com
    name@*
    *@*
    *@example.com
    *@server.example.com
    *@*.example.com
  4. Click Add.
    Trend Micro Email Security validates the sender address and adds it to the list.