Email signatures
Open Settings to create, edit, and choose a default email signature. Signatures can contain formatted content and images.
Images in HTML email
Use the WYSIWYG or layout editor to insert an image and adjust its size. Confirm that externally hosted resources are accessible to recipients and always include useful alternative text where possible.
Campaign attachments
Add supported files such as images or PDFs in the campaign builder. Attachments increase message size and can slow test sends, so wait for the sending indicator to finish and confirm the test message before launching.