552 MS-Office file containing VBA macros found inside of the email

Receiving an error message: 

552 MS-Office file containing VBA macros found inside of the email 


----- SOLUTION ----- 

This is a SonicWall's Gateway Anti-Virus feature. 

1. Login to the SonicWall 
2. Security Services 
3. Gateway Antivirus 
4. Configure Gateway AV Settings 
5. Check the box that says "Disable SMTP Responses" 
6. Select the SMTP section under Protocols, 
7. Uncheck " Restrict Transfer of MS-Office type files containing macros (VBA 5 and above)."