SendGrid allows you to configure and control everything about your SendGrid account. All of the settings that you can manage through the User Interface can also be managed through the API v3.
Your basic account settings for username, password, email address, and business address details.
Receive alerts about your account and your SendGrid behavior via email.
Create and manage your API Keys, which allow you to use SendGrid from your application or website.
Manage your payment details, invoices, and package.
Process incoming email with the Inbound Parse Webhook and POSTs parsed data to a URL that you choose.
Control how SendGrid filters and processes your emails as they go out to your recipients.
Restrict access to your SendGrid.com account using Multiple Factor Authentication.
Allow your employees and coworkers access to your SendGrid.com account.
Control settings for SendGrid partner services.
Create and manage subusers to segment your email sending and have different settings for your segments.
Control how your emails and your recipient email interaction behaviors are tracked within SendGrid.
Send all your emails from your domain and remove the “via SendGrid.net” message from your emails.