Forum Discussion
Exchange 2016 Maximum number of recipients in a message that's sent by the specific sender
Hello,
I want to know if the RecipientLimits value on a mailbox can override the MaxRecipientEnvelopeLimit.
For example, if I set the MaxRecipientEnvelopeLimit to 50 to limit all organization mailboxes to a maximum of 50 recipients, and then I set the RecipientLimits of a specific mailbox, let’s say user10@mylab.local, to unlimited.
Can user10 send an email with 100 recipients or not?
In Exchange 2016, the RecipientLimits property on a mailbox takes precedence over the organization-wide MaxRecipientEnvelopeLimit. That means if you set the global MaxRecipientEnvelopeLimit to 50 but configure a specific mailbox (e.g., user10@mylab.local
) with RecipientLimits set to Unlimited, that mailbox can bypass the organizational limit. In your example, user10 would indeed be able to send a message to 100 recipients, since the mailbox-specific RecipientLimits overrides the global setting.
6 Replies
Yes, the RecipientLimits set on a specific mailbox overrides the organization, wide MaxRecipientEnvelopeLimit. So if you set the global limit to 50 but configure user10 with Recipient Limits = Unlimited, that user can send a message to 100 recipients.
In Exchange 2016, the RecipientLimits property on a mailbox takes precedence over the organization-wide MaxRecipientEnvelopeLimit. That means if you set the global MaxRecipientEnvelopeLimit to 50 but configure a specific mailbox (e.g., user10@mylab.local
) with RecipientLimits set to Unlimited, that mailbox can bypass the organizational limit. In your example, user10 would indeed be able to send a message to 100 recipients, since the mailbox-specific RecipientLimits overrides the global setting.As per the Microsoft documentation, that's not correct if the RecipientLimit is set to Unlimited. Please see the link in my previous post.
This Microsoft Learn page says: If the mailbox level RecipientLimits is set to unlimited (the default value), then the maximum number of recipients per message for the mailbox is controlled by the Transport level MaxRecipientEnvelopeLimit.
Hello Dan_Snape
You are right, when I set the "RecipientLimit" to 80 for user01, I was able to bypass the "MaxRecipientEnvelopeLimit" during my tests.
