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Stop the Mail! Restrict Users from Emailing to Certain Addresses

LuxSci has supported restricting to whom users can send email messages for quite some time.  However, this implementation behaves like a “locked down allow list”.  I.e. you can set it up so that users can send only to a certain set of addresses and/or domains.  We have had several requests for a feature to allow users to send to anyone except certain addresses or domains (i.e. a recipient deny list).

LuxSci has updated the “Recipient Restriction” settings that can be configured on each domain so that administrators can choose to have any of the following:

  • No restrictions
  • Allow List Style – “Send only to these folks” restrictions
  • Deny List Style – “Send to anyone but these folks” restrictions.

Clients have expressed the desire to use the deny list restrictions to forbid users from sending to public email addresses like “Gmail”, “AOL”, “Yahoo!”, etc.  The administrators can now simply list these domain names in the deny list and restrict users from sending mail to addresses in those domains from WebMail and SMTP.

Administrators can exempt certain selected users from the restrictions altogether; however, it is sometimes necessary for affected users to send email to people in the denied list anyway.  To accommodate this business need, there is also a “Allow-via-Cc” list that can be used.  With the list in use, users can send to any address on the recipient deny list as long as they also send a copy (via To, Cc, or Bcc) to someone on the “Allow-via-Cc” list.  I.e., the intended recipient gets a copy as does the boss or an auditor who will ensure (after the fact) that the message sent to the restricted address is acceptable.

Note that LuxSci also permits restricting from whom users can receive email.

4 Responses to “Stop the Mail! Restrict Users from Emailing to Certain Addresses”

  1. New: Restrict Which Email Addresses Your Users can Receive Email From | LuxSci FYI Says:

    [...] combined with the feature giving control over to whom users can send email, this sender restrictions allow a complete lock down the sending and receiving of email in both [...]

  2. LuxSci Outbound Email: 5 Sending Options Compared! | LuxSci FYI Says:

    [...] Restricts your users from sending email to specific addresses or domains. [...]

  3. New: MX Logic Outbound Filtering for Email Hosted at LuxSci | LuxSci FYI Says:

    [...] Restrictions to whom your users are allowed to send email [...]

  4. Safe Family Email with LuxSci Parental Controls | LuxSci FYI Says:

    [...] you would like to restrict your children so that they can only send email TO specific addresses/domains, then you should enable the Recipient Restriction feature.  This is commonly used so that the [...]

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