# Dmarcian and subdomains **URL:** \ **Category:** Technical Help\ **Created:** [April 17, 2020, 9:39am UTC](https://forum.dmarcian.com/t/dmarcian-and-subdomains/1224 "2020-04-17T09:39:20Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![UffeA](https://avatars.discourse-cdn.com/v4/letter/u/b5e925/32.png) [@UffeA](https://forum.dmarcian.com/u/UffeA)\ **Post date:** [April 17, 2020, 9:39am UTC](https://forum.dmarcian.com/t/dmarcian-and-subdomains/1224/1 "2020-04-17T09:39:20Z")
If a subdomain, for an active domain, is added automatically to the Summary page, will it then automatically be removed again, if no mail has been seen from it within the last 7 days? I seem to recall that they stayed put, but now I seem to lack at least one, possibly more subdomains. If I go to the detail viewer, I can’t choose the subdomains, even though I am certain that historical data is available for it. In order to choose the subdomain, it apparently must be present in the Summary. I am not the only user with access, so the subdomain could have been deleted manually, but no one can recall having done so. Is this expected behaviour or a bug? Regards /Uffe ---
**Author:** ![Asher](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.dmarcian.com/asher/32/104_2.png) [@Asher](https://forum.dmarcian.com/u/Asher)\ **Post date:** [July 17, 2020, 5:52pm UTC](https://forum.dmarcian.com/t/dmarcian-and-subdomains/1224/2 "2020-07-17T17:52:20Z")
Hi UffeA When a subdomain is collapsed under the primary, it will be removed after 7 days if no non-capable, DMARC capable, forwarding data was received, and no XML was uploaded during that time. However if a subdomain is legitimate, but only periodically sends with waiting periods greater than 7 days, then I recommend using the domain overview domain action of “set domains as top level” which will place the domain alongside the primary, and prevent auto-removal. This is expected behaviour. I hope this helps. AM