We want emailing from Marketo Sales to feel like a seamless experience when sending from your own email client. A great way to do this is to add your email signature.
Click the gear icon and select Settings.
Under My Account, select Email Settings.
In the Address and Signature tab, select the email identity you want to create a signature for.
In the Signature card, click Edit.
Enter your desired text (or images) and click Save.
Make sure your signature in the compose screen looks similar to the signature listed in your email client.