# 邮件接收者在最近升级后失去主机名解析IP，导致反垃圾邮件措施失效

**URL:** <https://meta.discourse.org/t/mail-receiver-loses-ip-to-hostname-resolution-after-recent-upgrade-and-prevents-anti-spam-measures-from-working/205003>\
**Category:** Support\
**Created:** [2021年十月1日 19:18 UTC](https://meta.discourse.org/t/mail-receiver-loses-ip-to-hostname-resolution-after-recent-upgrade-and-prevents-anti-spam-measures-from-working/205003 "2021-10-01T19:18:21Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![md-misko](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/md-misko/32/126315_2.png) [@md-misko](https://meta.discourse.org/u/md-misko)\
**Post date:** [2021年十二月7日 14:41 UTC](https://meta.discourse.org/t/mail-receiver-loses-ip-to-hostname-resolution-after-recent-upgrade-and-prevents-anti-spam-measures-from-working/205003/3 "2021-12-07T14:41:51Z")

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[https://github.com/discourse/mail-receiver/pull/12](https://github.com/discourse/mail-receiver/pull/12)

@david 这应该可以解决 [Self-hosted mail-receiver update following Let's Encrypt root certificate change - #6 by md-misko](https://meta.discourse.org/t/self-hosted-mail-receiver-update-following-lets-encrypt-root-certificate-change/204924/6?u=md-misko) 中提到的两个问题。

请评估从 chroot 监狱中移除 postfix 是否会引入任何安全问题（IMO 不应该，因为 postfix 已经在专用的 docker 镜像中隔离了）。

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_[View the full topic](https://meta.discourse.org/t/mail-receiver-loses-ip-to-hostname-resolution-after-recent-upgrade-and-prevents-anti-spam-measures-from-working/205003)._