It is a great idea to add your company logo into your signature as it communicates legitimacy to anyone who receives it and makes your postcards look professional.
To add your company logo, head over to Mailers.
Click Signatures and tap on your signature.
Under Signature Image, choose to Use Company Logo in Signature.
Click Change Photo to upload your company logo.
Finally, click Save Signature. 😊
If you are in the Basic plan, you'll only get one signature. If you are in the Enterprise plan, you will be able to create multiple signatures so make sure to upload your company logo to the others as well.