diff --git a/src/core/DigitalData.MessagingService.Application/Common/Mappings/EmailMappingProfile.cs b/src/core/DigitalData.MessagingService.Application/Common/Mappings/EmailMappingProfile.cs
index 4726a32..9ada128 100644
--- a/src/core/DigitalData.MessagingService.Application/Common/Mappings/EmailMappingProfile.cs
+++ b/src/core/DigitalData.MessagingService.Application/Common/Mappings/EmailMappingProfile.cs
@@ -13,6 +13,7 @@ public class EmailMappingProfile : Profile
     {
         // SendEmailCommand -> Email
         // Sender is resolved via MediatR in the handler and set separately after mapping.
-        CreateMap<SendEmailCommand, EmailContext>();
+        CreateMap<SendEmailCommand, EmailContext>()
+            .ForMember(dest => dest.Sender, opt => opt.Ignore());
     }
 }