Contact form 7 & Gmail issue

Hi,

On my client’s website I have the following issue with the cf7 forms used at the website pages below:

https://www.samaina-hotel-samos.com/contact/
https://www.samaina-hotel-samos.com/reservations/

On each contact form I have set my client’s gmail for mails to be sent.

From first website page, my client receives at his gmail normally the multiple Contact Messages but not as separate emails. They are appeared like replies to the first email sent. The same issue happens with the Reservation Request messages sent from the second website page. Each Reservation request is not appeared like a separate email.

Waiting for your solution on this issue.

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