How to say please refer with a previous mail

Here are a few ways to say "please refer to" with a previous mail:

1. Please refer to my previous email dated [Date] for more information.
2. As mentioned in my email dated [Date], please refer to [specific topic or attachment].
3. For your reference, please see my email dated [Date] regarding [topic].
4. Please review my previous email dated [Date] for details on [specific topic].
5. As a follow-up to my email dated [Date], please refer to [specific topic or attachment] for further information.
6. Please find the relevant information in my email dated [Date] under [specific topic or section].
7. For your convenience, please refer to my previous email dated [Date] for [specific information or attachment].
8. Please review the attachment sent in my email dated [Date] for [specific information or details].

These phrases are commonly used in professional emails to direct the recipient to a previous email for more information or clarification.