Hi @JoaotiBatista,
Thank you for reaching out to the Community, I hope you are having a great day 
I would like to clarify that Hubspot acts as an intermediary in the email-sending process. We collect all necessary email details and transmit them to the email host, such as Gmail, for delivery. When emails are sent, your email host processes and delivers them to your Gmail inbox, which is then forwarded to Hubspot. As a 3rd party in the email process, we do not have control over your email host servers. For assistance with email reception inquiries, I recommend contacting Gmail support.
Thank you!
Diana