Hi Vincent,
Generally, we can delay the delivery of an individual email message or use rules to delay the delivery of all messages by having them held in the Outbox for a specified time after you click Send. But considering that the rule "defer delivery by a number
of minutes" can only make the delivery be delayed up to 120 minutes, I'd like to suggest setting the "Do not deliver before" option for each message separately:
Please note that Outlook need to be open to send a delayed email.
In addition, if you have further concerns about the possibility to automatically apply this defer delivery setting to all messages with "weekly reports", you may consider posting a new thread to the following dedicated MSDN forum for Outlook to
consult whether the requirement can be realized using macro:
https://social.msdn.microsoft.com/Forums/en-US/home?forum=outlookdev
The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding.
Best regards,
Yuki Sun
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