Adding Senders

Trend Micro Email Security only approves or blocks email messages from the specified sender for the specified domain.

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.

To block or allow email messages from a specific sender to all domains, select all my domains from the Managed domain drop-down list.

  1. Select a specific domain from the Managed domain drop-down list. To select all domains, select all my domains from the list.
  2. In the Email address or domain field, type a sender. 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:

    Table 1. Format Examples for Approved Senders and Blocked Senders

    Valid

    Not Valid

    name@info.example.com

    name@*.example.com

    *@example.com

    *@*.com

    *@server.example.com

    *@*

    *@*.example.com

  3. Click Add to List. Trend Micro Email Security validates the sender address and adds it to the list.
    Tip:

    Trend Micro Email Security validates the format of the sender address before adding the sender to the list. If you receive multiple formatting error messages and are sure that the address provided is accurate, your administrator console may have timed out. Reload the page and try again.