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How to set up SendGrid with an API key

Create a key with mail-sending permission and connect the SendGrid-Api-Key option available in CRM email accounts.

A user prepares a secure key for sending CRM email to customers

Published on October 21, 2026

The SendGrid-Api-Key option lets CRM send email using a SendGrid API key. It can help when your company manages outbound email through SendGrid and wants to use a verified sender identity. This connection is for outgoing email; it does not add an inbox for receiving messages.

Before you begin
Verify the sender identity or domain you plan to use in SendGrid, then create an API key with mail-sending permission (Mail Send). The key name only helps you recognize it in your account; the key itself is the secret value SendGrid displays when you create it. Store that value securely. See SendGrid’s official API key guide.
Legacy SendGrid screen for creating an API key, with the key name hidden and the Create Key button visible
Recovered from the previous guide. SendGrid’s interface may have changed; the visible key name was hidden and is not the credential you enter in CRM.

Connect SendGrid in CRM

  1. In SendGrid, create the key from Settings > API Keys. Give it a recognizable name, such as Upnify CRM, and limit its permissions to sending email when the screen allows it.
  2. Copy the API key’s secret value when it is created and store it securely. Do not copy only the name shown in the list: it is not the key, and SendGrid does not display the secret value again later.
  3. In CRM, open your profile menu and go to Personal adjustments > E-mail Accounts. Select New.
  4. For Type, choose Output. For Provider, select exactly SendGrid-Api-Key; CRM may also show a separate option named SendGrid.
  5. In E-mail, enter the sender address you verified in SendGrid. In Password, paste the API key’s secret value. Do not use your SendGrid sign-in password or the name you gave the key.
  6. Select Accept. If the account saves, confirm that it appears in the list and send a test message to an address you can check.
Current CRM form with SendGrid-Api-Key selected and blank E-mail and Password fields
Current CRM form. The fields are blank to protect credentials; this screenshot shows the interface in Spanish.
Do not confuse the key name with the key
The API key name is only a label to identify the key in SendGrid; do not use it as the secret value in CRM. Also, SendGrid’s standard SMTP Relay authentication uses the literal username apikey and the API key as the password. This article covers CRM’s specific SendGrid-Api-Key provider, whose current form asks for E-mail and Password. If CRM rejects the setup, check that the key allows Mail Send and that your sender is verified; do not guess at names or passwords. See SendGrid’s official SMTP Relay authentication.

If you change or revoke the API key, update this account’s password in CRM and send another test message. Treat the key like a password: do not include it in screenshots, emails, or chats.