When I went to bed, everything was humming. When I woke up, everything was dead.

Logging into the web interface, I got the message "you have exceeded your limits". The "about" page reported that I was on the free version. I have a 500 user pro license that does not expire until Sep 8, 2020 and I am only at 334 users. 

I reactivated with my existing license and everything started working again.

Here is the license log (details replaced with 'X')...

---

[2019.08.29] 00:02:15.236 Daily activation check started.

[2019.08.29] 00:27:41.566 License operation 'ActivationQuery' occured.

[2019.08.29] Result=Success

[2019.08.29] AuthToken=X

[2019.08.29] AuthEmail=

[2019.08.29] AuthPassword=****HIDDEN****

[2019.08.29] LicenseKey=

[2019.08.29] MasterProductName=SMARTERMAIL

[2019.08.29] ProductVersion=100.0.7125

[2019.08.29] MachineName=EC2AMAZ-64A3I00

[2019.08.29] IsReactivation=True

[2019.08.29] 00:27:41.573 An error occurred during automatic license re-activation.  Error Message: There is not enough space on the disk.

[2019.08.29] 11:15:10.393 License operation 'ActivationQuery' occured.

[2019.08.29] Result=Failure

[2019.08.29] AuthEmail=X

[2019.08.29] AuthPassword=****HIDDEN****

[2019.08.29] LicenseKey=X

[2019.08.29] MasterProductName=SMARTERMAIL

[2019.08.29] ProductVersion=100.0.7125

[2019.08.29] MachineName=EC2AMAZ-64A3I00

[2019.08.29] IsReactivation=False

[2019.08.29] 11:15:40.059 License operation 'ActivationQuery' occured.

[2019.08.29] Result=Success

[2019.08.29] AuthEmail=X

[2019.08.29] AuthPassword=****HIDDEN****

[2019.08.29] LicenseKey=X

[2019.08.29] MasterProductName=SMARTERMAIL

[2019.08.29] ProductVersion=100.0.7125

[2019.08.29] MachineName=EC2AMAZ-64A3I00

[2019.08.29] IsReactivation=False

---

The "00:02:15.236" check is the automatic one that killed the server. 

The "11:15:10.393" check is me frantically trying to manually reactivate and probably mistyping the email address or password. 

The "11:15:40.059" check is me manually reactivating again, which works and gets the server back online. 

Note that all my drives have plenty of free space, so I don't know what that "There is not enough space on the disk." is about. 

I am running SmarterMail Professional Build 7125 (Jul 5, 2019).

Any ideas what happened here, and more importantly how can I prevent it from happening again?!

Any way to have SmarterMail at least send an alert email or something when a licence is deactivated so I can deal with it immediately and don't have to wait to find out the hard way the next morning? 

Thanks!

-josh