# Possible fix for server process high CPU usage - mail settings
**URL:** https://www.finalbuilder.com/forums/t/possible-fix-for-server-process-high-cpu-usage-mail-settings/5344
**Category:** Discussion
**Created:** [April 30, 2015, 11:42am UTC](https://www.finalbuilder.com/forums/t/possible-fix-for-server-process-high-cpu-usage-mail-settings/5344 "2015-04-30T11:42:06Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@stuy](https://www.finalbuilder.com/forums/u/stuy)
#### Post date: [April 30, 2015, 11:42am UTC](https://www.finalbuilder.com/forums/t/possible-fix-for-server-process-high-cpu-usage-mail-settings/5344/1 "2015-04-30T11:42:06Z")
My server process was regularly consuming 100% of one processor while it was idle. I had a look at the threads in Process Explorer, grabbed a stack trace from the one that was permanently running, and noticed that there were calls to an SMTP client library in the stack. Checking the server settings, the email config had only default settings (no mail server specified). Entering valid SMTP server details seems to have fixed the problem; perhaps others might find this useful.
---
### Author:  [@Vincent](https://www.finalbuilder.com/forums/u/Vincent)
#### Post date: [April 30, 2015, 1:32am UTC](https://www.finalbuilder.com/forums/t/possible-fix-for-server-process-high-cpu-usage-mail-settings/5344/2 "2015-04-30T01:32:36Z")
Hi Stu
Thanks, not sure what is going on there, if there is no server set is shouldn’t be doing anything, we’ll investigate.
---
### Author:  [@Sparky](https://www.finalbuilder.com/forums/u/Sparky)
#### Post date: [May 1, 2015, 7:03am UTC](https://www.finalbuilder.com/forums/t/possible-fix-for-server-process-high-cpu-usage-mail-settings/5344/3 "2015-05-01T07:03:28Z")
Hi Stu,
Thanks for reporting this. We’ve now identified a place where we were attempting to send email messages without valid email publisher details. We will implement a fix this for the next version.