# letsencryptアップデート後のメール受信者ログエラー

**URL:** https://meta.discourse.org/t/mail-receiver-log-errors-after-letsencrypt-update/204938
**Category:** Support
**Created:** [2021 年 10 月 1 日午前 6:50 UTC](https://meta.discourse.org/t/mail-receiver-log-errors-after-letsencrypt-update/204938 "2021-10-01T06:50:27Z")
**Posts on this page:** 1
**Showing post:** 9

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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 12 月 7 日午後 2:43 UTC](https://meta.discourse.org/t/mail-receiver-log-errors-after-letsencrypt-update/204938/9 "2021-12-07T14:43:33Z")

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

> [@Mail-receiver loses IP to hostname resolution after recent upgrade and prevents anti-spam measures from working](https://meta.discourse.org/t/mail-receiver-loses-ip-to-hostname-resolution-after-recent-upgrade-and-prevents-anti-spam-measures-from-working/205003/3?u=md-misko):
>
> @david This should fix both issues mentioned in [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) Please evaluate whether removing postfix from the chroot jail introduces any security issues (IMO it shouldn’t, as postfix is already isolated inside a dedicated docker image).

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