Who this applies to#
- Test Outlook rendering when Outlook recipients are material to the audience or when the message uses format-sensitive layouts and media
What Outlook rendering requires#
- Preserve a readable message and recognizable attachments when format conversion or client behavior differs from the authoring preview
Outlook
Microsoft documents how TNEF can change the message body and attachment representation seen by recipients
What this does not require#
- An Outlook-specific issue does not mean the message failed to reach the inbox
Common mistakes#
- Treating an Outlook preview as universal
- Confusing a rendering problem with deliverability
- Depending on one client-specific representation
Outlook rendering checklist#
- Check the body
- Check links
- Check attachments
- Compare another client
- Keep a fallback