@sravankumark9913 In Pega 8.8.3, the email listener and email channel save emails in the default .eml format. Unfortunately, Pega does not natively support saving emails in .msg format as it is specific to Microsoft Outlook and requires proprietary libraries. However, you can explore custom solutions such as integrating an external library or service that converts .eml to .msg after the email is ingested. For example, after the email is attached to the case in .eml format, you can write a custom Java step or service to perform the conversion using third-party APIs or tools. Alternatively, consider saving the required email content (subject, body, attachments) in a structured format within Pega to meet your use case without relying on .msg format.