How to connect SendGrid SMTP to

In this guide, you’ll learn how to connect your SendGrid account to using SMTP credentials and server settings.

The process of connecting involves three primary steps:

1) Getting your SendGrid SMTP credentials

2) Configuring a new email account in

3) Verify email integration

4) Configuring optional settings lets you connect your own business or personal mailbox and send email campaigns through your email provider’s servers to have total control over your sender account’s performance.

If you have an email account with SendGrid SMTP, you can take advantage of its emailing capabilities and connect it to

1) Getting your SendGrid SMTP credentials

Start with creating SMTP credentials in your SendGrid account.

Enable SMTP relay

  • Go to your SendGrid account
  • Select Email API tab → Integration Guide
  • Choose SMTP relay option

Create an API key

On the SMTP relay settings page, get a private key to authenticate our app to send emails through your SendGrid email account.

  • Type any name for your API key. For example, API key for
  • Click Create Key

You’ll see a notification that your API key was successfully created. 

Keep this page open  – you’ll need it while setting up your email account in 

Before we proceed:

The ESP requires you to have a verified sender in your SendGrid account before you can send emails or set up your email integration with another app. 

You can check a list of senders on this page

Click Create New Sender if your sender list is empty.

2) Adding a new email account in

In the second step, you’ll need to enter your SMTP and IMAP settings on the email account configuration page.

This page lists all the email accounts that you’ve added before or will add to

Start adding a new email account by clicking the Add email account button.

  • Choose SendGrid from the email service providers list.

The email account settings page will open.

Entering SMTP settings connects to your provider’s SMTP server to send emails to your recipients.

In the SMTP section, enter your SMTP credentials and the provider’s server settings for sending emails.

Refer to the explainer table below for guidance on the information you need to enter in each mandatory * field.

SMTP credentials:

Field Explainer
 (1) From name This is your sender name.

Enter your name or company name to be displayed in the ‘From’ field when your recipients receive your email.

(2) From email  This is your sender email address.

When your recipients receive your email, this email address will be displayed in the ‘From’ field.

(3) API key password Enter the API key password created in SendGrid.
(4) Username The field is pre-filled with ‘apikey’ by default, according to SendGrid settings.

SMTP server settings:

Field Default provider’s value Explainer
 (5) Host Select a default SMTP host from a dropdown menu.
(6) Port 465 for SSL encryption The field is pre-filled with the port ‘465’ for SSL connections by default

Entering IMAP settings

The IMAP server is responsible for tracking incoming responses and letting to log them into the email campaign statistics.

Tip: SendGrid is an exclusively email sending service, so the IMAP (receiving emails) settings are not available. Connect to another email account that you receive replies to. The reply-to email you specify here must match the reply-to email in SendGrid settings.


For example, you can use default IMAP server settings from Google or Office 365 accounts.

IMAP credentials:

Field Explainer
(1) Username Enter your Gmail email address.
(2) Password Enter your app password” for this Gmail account. Read how to create it.

IMAP server settings:

Field Default provider’s value
(3) Host
(4) Port 993 for SSL encryption

Attention: Adding IMAP settings is optional, but if you don’t add them, your email account will be connected conditionally.

As a result, will not be able to track responses to emails sent from this email account and reply statistics may be inaccurate.

Read more about conditional connection here

Send a test email to check connection

Complete your email account setup by testing the connection after entering all required settings.

  • click the Check connection button will send you the test email with the subject “Testing your new email with” confirming the successful connection.

3) Verify email integration 

To confirm the email integration between SendGrid and is successful:

  • Go back to the SMTP relay screen in SendGrid
  • Tick the I’ve updated my settings box
  • Click the Next: Verify integration button

4) Optional settings

The following settings are optional and can be skipped for a quicker setup. Configuring them will allow you more control over your account’s performance.

Daily sending limits (1)

Setting Explainer
Messages per day Set a daily sending goal for this email account.

The number should be lower or equal to the provider’s daily limit. will stop sending emails for the day after reaching this goal.

Delay between emails Сhoose the interval (fixed or random) in seconds between every email message in your campaigns.

Increasing the time gap between your emails can make your email campaigns appear safer to the ESP.

Add your email signature (2)

Add a signature that will be attached at the end of all emails sent from this email account.

Read our guide ⇒

 Set up a custom tracking domain (3)

With a custom tracking domain, you can expect up to 20% improvement in deliverability of this sender account.

Read our guide ⇒

Warm-up your email account (4)

Start warming up your email account to raise your sender reputation and improve deliverability.

Add your mailbox for a warm-up ⇒

Add a BCC email address (5) 

Add your CRM email to forward all emails sent via this email account to your mailbox in the CRM.

After configuring the desired optional settings, click the Add account button to save it.

Read next:

Launch your email campaign

After connecting your SendGrid email account to, you can select it as a sender for your email campaign.

Read our guide ⇒

Have more questions? We’re here to help at or live-support chat.

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