-`SENDGRID_EMAIL_FROM`, a valid sender email validated on SendGrid
-`SENDGRID_TEMPLATE_ID_EMAIL_CONFIRMATION`, a template id of the email confirmation body to be used. Also created on SendGrid dashboard. ex: "d-47948c4b..."
-`SENDGRID_TEMPLATE_ID_ACCOUNT_CREATED`, a template id of the email sent when the account was created. Also created on SendGrid dashboard. ex: "d-87143d1c..."
-`SENDGRID_TEMPLATE_ID_EMAIL_CONFIRMATION_XX`, a template id of the email confirmation body to be used where XX is a valid language code (EN, FR, ...). Also created on SendGrid dashboard. ex: "d-47948c4b..."
-`SENDGRID_TEMPLATE_ID_ACCOUNT_CREATED_XX`, a template id of the email sent when the account was created where XX is a valid language code (EN, FR, ...). Also created on SendGrid dashboard. ex: "d-87143d1c..."