How to effectively filter spam emails that have two '@' symbols in the address?












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Apologies if this has been addressed before. We are seeing a companywide uptick in spam emails with attachments that use the following syntax for the 'From' email address (I apologize again that this didn't show up in my original post):



"Employee Name employeename@workdomain.comsomeothername@someotherdomain.com"



The first part of the address is definitely an employee's name and existing email address. What's different is that there is always another address/domain appended to the end of it. Most times this defeats the spam filters & Outlook rules already in place. Without blocking every single "someotherdomain.com" that comes along, is there a way to filter out emails that have two '@' symbols in the address? Or conversely, mark as spam or junk any emails whose primary domain ('@workdomain.com') appears to be much longer (i.e., '@workdomain.com*')?



Thanks in advance!










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    0














    Apologies if this has been addressed before. We are seeing a companywide uptick in spam emails with attachments that use the following syntax for the 'From' email address (I apologize again that this didn't show up in my original post):



    "Employee Name employeename@workdomain.comsomeothername@someotherdomain.com"



    The first part of the address is definitely an employee's name and existing email address. What's different is that there is always another address/domain appended to the end of it. Most times this defeats the spam filters & Outlook rules already in place. Without blocking every single "someotherdomain.com" that comes along, is there a way to filter out emails that have two '@' symbols in the address? Or conversely, mark as spam or junk any emails whose primary domain ('@workdomain.com') appears to be much longer (i.e., '@workdomain.com*')?



    Thanks in advance!










    share|improve this question



























      0












      0








      0







      Apologies if this has been addressed before. We are seeing a companywide uptick in spam emails with attachments that use the following syntax for the 'From' email address (I apologize again that this didn't show up in my original post):



      "Employee Name employeename@workdomain.comsomeothername@someotherdomain.com"



      The first part of the address is definitely an employee's name and existing email address. What's different is that there is always another address/domain appended to the end of it. Most times this defeats the spam filters & Outlook rules already in place. Without blocking every single "someotherdomain.com" that comes along, is there a way to filter out emails that have two '@' symbols in the address? Or conversely, mark as spam or junk any emails whose primary domain ('@workdomain.com') appears to be much longer (i.e., '@workdomain.com*')?



      Thanks in advance!










      share|improve this question















      Apologies if this has been addressed before. We are seeing a companywide uptick in spam emails with attachments that use the following syntax for the 'From' email address (I apologize again that this didn't show up in my original post):



      "Employee Name employeename@workdomain.comsomeothername@someotherdomain.com"



      The first part of the address is definitely an employee's name and existing email address. What's different is that there is always another address/domain appended to the end of it. Most times this defeats the spam filters & Outlook rules already in place. Without blocking every single "someotherdomain.com" that comes along, is there a way to filter out emails that have two '@' symbols in the address? Or conversely, mark as spam or junk any emails whose primary domain ('@workdomain.com') appears to be much longer (i.e., '@workdomain.com*')?



      Thanks in advance!







      email microsoft-outlook spam-prevention email-filter






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      edited Dec 7 at 21:25

























      asked Dec 4 at 14:18









      Chris B.

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          From what I know, it is not feasible to use special wildcard characters such as an asterisk (*) in Outlook Junk Mail Options > Block Senders.



          If the spam messages sender's email addresses are similar to "employee's name@workdomain.com@spamdomain.com", you may consider creating an inbox rule to move messages contain "workdomain.com@" to Junk Email folder:
          enter image description here






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            From what I know, it is not feasible to use special wildcard characters such as an asterisk (*) in Outlook Junk Mail Options > Block Senders.



            If the spam messages sender's email addresses are similar to "employee's name@workdomain.com@spamdomain.com", you may consider creating an inbox rule to move messages contain "workdomain.com@" to Junk Email folder:
            enter image description here






            share|improve this answer


























              0














              From what I know, it is not feasible to use special wildcard characters such as an asterisk (*) in Outlook Junk Mail Options > Block Senders.



              If the spam messages sender's email addresses are similar to "employee's name@workdomain.com@spamdomain.com", you may consider creating an inbox rule to move messages contain "workdomain.com@" to Junk Email folder:
              enter image description here






              share|improve this answer
























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                From what I know, it is not feasible to use special wildcard characters such as an asterisk (*) in Outlook Junk Mail Options > Block Senders.



                If the spam messages sender's email addresses are similar to "employee's name@workdomain.com@spamdomain.com", you may consider creating an inbox rule to move messages contain "workdomain.com@" to Junk Email folder:
                enter image description here






                share|improve this answer












                From what I know, it is not feasible to use special wildcard characters such as an asterisk (*) in Outlook Junk Mail Options > Block Senders.



                If the spam messages sender's email addresses are similar to "employee's name@workdomain.com@spamdomain.com", you may consider creating an inbox rule to move messages contain "workdomain.com@" to Junk Email folder:
                enter image description here







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Dec 5 at 7:33









                Yuki Sun

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