I can't seem to find the maximum number of SMTP email addresses per mailbox. I am setting up a test account and would like it to have a couple hundred. Does anyone know if there is a maximum? Thanks in advance.

1. I'm not sure, never seen a couple of hundred before but have seen around 40-60. I dont think it would be an issue but I cant say for sure. You can probably create a test account and test. No harm in doing it. Sukh

According to this thread 100 and 200 should be fine, if there is a limit you would reach at all. What is the limits for: proxyAddresses and mail attributes http://www.winserverkb.com/Uwe/Forum.aspx/exchange-admin/62627/What-is-the-limits-for-proxyAddresses-and-mail-attributes MCTS: Messaging | MCSE: S+M

According to this thread 100 and 200 should be fine: What is the limits for: proxyAddresses and mail attributes http://www.winserverkb.com/Uwe/Forum.aspx/exchange-admin/62627/What-is-the-limits-for-proxyAddresses-and-mail-attributesMCTS: Messaging | MCSE: S+M

Hi I am also interested in your question. I believe that it will be less than 100. So I just add smtp address manually. It is my biggest fault today. The limit is more than 512. I believe that it is enough to you… Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.