There can be a few reasons why your emails are not being sent after adding prospects to a campaign:

If your campaign status is Off, emails will not be sent. To check the status of the campaign, look under the Status column on the Campaigns page:

After adding prospects to a campaign, it can take up to 15 minutes for the first email to be sent. This is the time required for our servers to process your email.

In some cases, it may take a bit longer, for example, when our servers are being heavily solicited.

After adding prospects to a campaign, we'll start sending emails with the selected sending address. If there is an issue with this sending address – for example, if you changed your Google password – then the email step will not be processed, and the prospects will be in error.

You'll need to reconnect your sending address to send the email.

Note: You'll get a notification email when a sending address is in error.

In each campaign settings, you can select the time for emails to be sent. Our system will automatically send emails at any time between the given hours.

Once the sending time is over, the emails are not sent until the next sending day.

To protect your email account, every sending address has a daily limit. If you reach the limit, your emails will automatically be scheduled for the next available day.

We automatically put a 30-second delay between each email sent using a sending address. This is a security measure to avoid your account being marked as spam.

If you scheduled a lot of emails on a given day, the last ones in the queue might be sent after a few hours because of the delay between emails.

Sometimes the email server (Google, Outlook, your SMTP server) can be temporarily in error. When that happens, we'll retry sending your email until the server successfully replies. This can add a delay in sending your emails.