When a new customer sends an e-mail, the new customer will be automatically added to the client database. The customer's first and last name will be automatically put into the field 'Last Name'. When the customer's first and last name are added like 'Test User', there is no problem. When the customer's first and last name are added like 'User, Test' (with a comma), we will get an error when choosing this customer as a recipient. 

For example, we will choose the customer as shown below:

When choosing this customer, it will not paste the e-mailadres in the recipient field, but it will paste ''User, Test< test@test.com>'', which is not a valid e-mailaddress:

It is not possible to send an e-mail to this e-mailaddress when it is pasted into the recipient field as shown above.

Can you please offer a fix for this problem?

Thanks in advance,

Yorick