# 启用“邮件列表镜像”设置时，不应删除 incoming 邮件的内容。
**URL:** https://meta.discourse.org/t/content-of-incoming-emails-shouldnt-be-deleted-when-the-mailing-list-mirror-setting-is-enabled/107280
**Category:** Feature
**Created:** [2019年一月23日 11:52 UTC](https://meta.discourse.org/t/content-of-incoming-emails-shouldnt-be-deleted-when-the-mailing-list-mirror-setting-is-enabled/107280 "2019-01-23T11:52:10Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@icaria36](https://meta.discourse.org/u/icaria36)
#### Post date: [2019年一月23日 11:52 UTC](https://meta.discourse.org/t/content-of-incoming-emails-shouldnt-be-deleted-when-the-mailing-list-mirror-setting-is-enabled/107280/1 "2019-01-23T11:52:10Z")
Currently incoming emails go through a process to delete signatures, entire replies quoted, and basically any _noise_ not part of the actual new message. While this is working well for the Reply Via Email use cases, for the Mailing List Mirror use case this trimming can be damaging.
In a mailing list mirror all content is expected to be mirrored. If actually valid content is trimmed accidentally, then not only the people receiving the emails will miss that content, the category serving as archive will miss that content too. This defeats the purpose of a mirror.
Incoming emails could still be processed trying to identify quoted replies and signatures, but instead of deleted they could be hidden behind a `[...]` button, leaving to users the option of expanding the full content.
Background:
> [@Text of forwarded emails don't show up in posts](https://meta.discourse.org/t/text-of-forwarded-emails-dont-show-up-in-posts/23155/27):
>
> I guess we could add a setting to disable trimming for mailing list mirrors. It could make sense for lists where members know how to behave and don’t include hundreds of useless lines of text from previous emails. Can you create a feature request for it?
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### Author:  [@gerhard](https://meta.discourse.org/u/gerhard)
#### Post date: [2019年一月23日 12:10 UTC](https://meta.discourse.org/t/content-of-incoming-emails-shouldnt-be-deleted-when-the-mailing-list-mirror-setting-is-enabled/107280/2 "2019-01-23T12:10:57Z")
> [@icaria36](#):
>
> but instead of deleted they could be hidden behind a `[...]` button
Wait… that’s already possible by enabling the `always show trimmed content` site setting. Otherwise the trimmed content is only visible to staff. I thought you wanted to completely disable trimming of emails, because _that_ isn’t possible at the moment.
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### Author:  [@icaria36](https://meta.discourse.org/u/icaria36)
#### Post date: [2019年一月23日 12:33 UTC](https://meta.discourse.org/t/content-of-incoming-emails-shouldnt-be-deleted-when-the-mailing-list-mirror-setting-is-enabled/107280/3 "2019-01-23T12:33:34Z")
No, the forward is being removed regardless of whether `always show trimmed content` is enabled or not. I just tested this scenario again, to be sure:
[https://discourse-mediawiki.wmflabs.org/t/discourse-fwd-wikitech-ambassadors-tech-news-2019-week-04/1095](https://discourse-mediawiki.wmflabs.org/t/discourse-fwd-wikitech-ambassadors-tech-news-2019-week-04/1095)
Feel free to test using our setup if you wish. We have got a testing mailing list with Mailman and a Discourse instance up to date.