# How do I filter all e-mails from various Discourse instances?
**URL:** https://meta.discourse.org/t/how-do-i-filter-all-e-mails-from-various-discourse-instances/29573
**Category:** Support
**Tags:** email
**Created:** [2015 年 6 月 2 日午後 9:05 UTC](https://meta.discourse.org/t/how-do-i-filter-all-e-mails-from-various-discourse-instances/29573 "2015-06-02T21:05:20Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@vi0oss](https://meta.discourse.org/u/vi0oss)
#### Post date: [2015 年 6 月 2 日午後 9:05 UTC](https://meta.discourse.org/t/how-do-i-filter-all-e-mails-from-various-discourse-instances/29573/1 "2015-06-02T21:05:20Z")
I want all Discourse-generated e-mails to be automatically moved to a folder on e-mail client.
Which rule shall I use for detecting Discourse-originated e-mails? I don’t see any obvious tags.
---
### Author:  [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [2015 年 6 月 2 日午後 10:42 UTC](https://meta.discourse.org/t/how-do-i-filter-all-e-mails-from-various-discourse-instances/29573/2 "2015-06-02T22:42:40Z")
If you view source on the email you should be able to find the headers.
In GMail this is the “show original” menu item.
---
### Author:  [@vi0oss](https://meta.discourse.org/u/vi0oss)
#### Post date: [2015 年 6 月 3 日午前 9:38 UTC](https://meta.discourse.org/t/how-do-i-filter-all-e-mails-from-various-discourse-instances/29573/3 "2015-06-03T09:38:56Z")
Found only one pattern:
“Message-ID” (or analogous header) begins with “topic/”
Expected to see the word “discourse” somewhere in headers…
---
### Author:  [@system](https://meta.discourse.org/u/system)
#### Post date: [2018 年 10 月 11 日午前 5:36 UTC](https://meta.discourse.org/t/how-do-i-filter-all-e-mails-from-various-discourse-instances/29573/4 "2018-10-11T05:36:04Z")
---
### Author:  [@sam](https://meta.discourse.org/u/sam)
#### Post date: [2018 年 10 月 11 日午前 6:41 UTC](https://meta.discourse.org/t/how-do-i-filter-all-e-mails-from-various-discourse-instances/29573/5 "2018-10-11T06:41:15Z")
Just confirming this is about the best you can do, we do not place a particular custom header on every single email we send. You would need a rule per site or try`topic/*` in the `Message-ID` which may have false positives.
---
### Author:  [@sam](https://meta.discourse.org/u/sam)
#### Post date: [2018 年 10 月 11 日午前 6:41 UTC](https://meta.discourse.org/t/how-do-i-filter-all-e-mails-from-various-discourse-instances/29573/6 "2018-10-11T06:41:17Z")