# Template Checker

**URL:** https://forum.mautic.org/t/template-checker/6198
**Category:** Product Support
**Created:** [October 12, 2016, 3:06am UTC](https://forum.mautic.org/t/template-checker/6198 "2016-10-12T03:06:20Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![olafdammann](https://avatars.discourse-cdn.com/v4/letter/o/779978/32.png) [@olafdammann](https://forum.mautic.org/u/olafdammann)
#### Post date: [October 12, 2016, 3:06am UTC](https://forum.mautic.org/t/template-checker/6198/1 "2016-10-12T03:06:20Z")

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Good Morning  
  
I struggle with changing the Mail Templates… when I change even small things (starting from Oxygen), the Builder colapses, error 500 sporadically shows up, the Content Tab doesn’t show the edit-Toolbar.  
  
So my “small” adjustments are somehow wrong…  
  
It there any Checker, that I can throw my newly made templates at and it tells me, what’s still wrong?  
  
THX  
  
OLAF

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<div class="post-metadata">

### Author: ![olafdammann](https://avatars.discourse-cdn.com/v4/letter/o/779978/32.png) [@olafdammann](https://forum.mautic.org/u/olafdammann)
#### Post date: [October 12, 2016, 3:06am UTC](https://forum.mautic.org/t/template-checker/6198/2 "2016-10-12T03:06:20Z")

</div>

Good Morning  
I struggle with changing the Mail Templates… when I change even small things (starting from Oxygen), the Builder colapses, error 500 sporadically shows up, the Content Tab doesn’t show the edit-Toolbar.  
So my “small” adjustments are somehow wrong…  
It there any Checker, that I can throw my newly made templates at and it tells me, what’s still wrong?  
THX  
OLAF