We can authenticate your voicemail-to-email FROM email address for you using SendGrid. We can either use your SendGrid account or authenticate your FQDN (Fully Qualified Domain Name)(i.e. reseller.com, company.com),  on our SendGrid account to send on your behalf.To use your SendGrid account, simply provide Support with an API Key that has Email Send permissions. The advantage of using your own SendGrid account is being able to see what Emails were sent and even viewed.If you prefer to use our SendGrid account:You must let us know which FQDN you wish to Authenticate, as well as the DNS Host used for the domain (GoDaddy, Google, Network Solutions, etc.).This FQDN would need to be used for all Voicemail to Email Addresses on your reseller account.We will add the FQDN as an Authenticated domain in our SendGrid account. At this time, SendGrid will generate several CNAM Records for you to add to your DNS Host. We also recommend creating an SPF Record to allow SendGrid, or adding SendGrid to an existing SPF Record.Once these have been completed, we will add our credentials to your Reseller account and emails should be confirmed from your server.   Note: If you plan to use the method above, please note your PBX domain email address must come from the authenticated FQDN on the Sendgrid Account. For example, if the email domain is '@abcbusiness.com' you may use any email address so long as it uses the authenticated FQDN you have set.We recommend sending emails from your domain, however, in some cases, larger companies may request that the Voicemail to Email is from their own domain name. A $25 one-time sendgrid setup fee will be charged on domains with less than 50 active seats.Please complete this online form to implement this option:  https://form.jotform.com/80503999599174