diff --git a/src/main/java/net/gepafin/tendermanagement/dao/CallDao.java b/src/main/java/net/gepafin/tendermanagement/dao/CallDao.java
index 97d0e4b4..e214e562 100644
--- a/src/main/java/net/gepafin/tendermanagement/dao/CallDao.java
+++ b/src/main/java/net/gepafin/tendermanagement/dao/CallDao.java
@@ -130,7 +130,7 @@ public class CallDao {
 			throw new CustomValidationException(Status.VALIDATION_ERROR,Translator.toLocale(GepafinConstant.AMOUNT_GREATER_THAN_ZERO_MSG));
 		}
 		callEntity.setAmountMin(createCallRequest.getAmountMin());
-		if(createCallRequest.getEmail()==null || Boolean.FALSE.equals(Utils.isValidEmail(createCallRequest.getEmail()))){
+		if(createCallRequest.getEmail()!=null && Boolean.FALSE.equals(Utils.isValidEmail(createCallRequest.getEmail()))){
 			throw new CustomValidationException(Status.VALIDATION_ERROR,Translator.toLocale(GepafinConstant.VALIDATION_EMAIL,createCallRequest.getEmail()));
 		}
 		callEntity.setEmail(createCallRequest.getEmail());
@@ -478,7 +478,7 @@ public class CallDao {
 		if (updateCallRequest.getAmountMin() != null && updateCallRequest.getAmountMin().compareTo(BigDecimal.ZERO) < 0) {
 			throw new CustomValidationException(Status.VALIDATION_ERROR,Translator.toLocale(GepafinConstant.AMOUNT_GREATER_THAN_ZERO_MSG));
 		}
-		if(updateCallRequest.getEmail()==null && Boolean.FALSE.equals(Utils.isValidEmail(updateCallRequest.getEmail()))){
+		if(updateCallRequest.getEmail()!=null && Boolean.FALSE.equals(Utils.isValidEmail(updateCallRequest.getEmail()))){
 			throw new CustomValidationException(Status.VALIDATION_ERROR,Translator.toLocale(GepafinConstant.VALIDATION_EMAIL,updateCallRequest.getEmail()));
 		}
 		setIfUpdated(callEntity::getAmountMin, callEntity::setAmountMin, updateCallRequest.getAmountMin());