iNewsletter implements a whitelist approach to file uploads. This enables us to ensure your newsletters are secure at all times.
When inserting photos into galleries, you can upload these file formats:
JPG or JPEG
As well as the above file formats, you can also use these file formats in attachments:
DOC or DOCX
XLS or XLSX
PPT or PPTX
If you believe there is another format we should allow, please get in touch with us.