How to use SendGrid's SMTP with Quickmail
Setting up QuickMail to send emails via SendGrid means emails will be sent out from SendGrid's SMTP service instead of the email account's default sending service.
Generating an API Key to use for SMTP Credentials
To get started, log in to your SendGrid account.
Then, click the dropdown beside Email API and click Integration Guide.
From the setup method, choose SMTP relay.
Next, generate the API key by adding the API Key Name and clicking Create Key.
This is how it should look like after generating the API key.
Updating the custom SMTP in QuickMail
After generating the API key in SendGrid, go to your QuickMail account.
Then, head to the inbox settings and click the inbox where SendGrid's custom SMTP must be used.
From your inbox settings, scroll down to the end of the page and you should see SMTP settings.
Just enter SendGrid's address (smtp.sendgrid.net) and port number (587).
The username is "apikey" and the password must be the password generated.
Next, click test sending in the SMTP settings.
If the configuration is correct in QuickMail, click I've updated my settings and Verify Integration in SendGrid.
Finally, click Verify integration in SendGrid to see if it's going to work.