external/mailinabox
1
0
Fork 0
mirror of https://github.com/mail-in-a-box/mailinabox.git synced 2026-03-31 21:17:23 +02:00
Code Issues Releases Wiki Activity

Disable SMTPUTF8 in Postfix because Dovecot LMTP doesn't support it and bounces messages that require SMTPUTF8

Browse Source 
By not advertising SMTPUTF8 support at the start, senders may opt to transmit recipient internationalized domain names in IDNA form instead, which will be deliverable.

Incoming mail with internationalized domains was probably working prior to our move to Ubuntu 18.04 when postfix's SMTPUTF8 support became enabled by default.

The previous commit is retained because Mail-in-a-Box users might prefer to keep SMTPUTF8 on for outbound mail, if they are not using internationalized domains for email, in which case the previous commit fixes the 'relay access denied' error even if the emails aren't deliverable.
This commit is contained in:
Joshua Tauberer
2021-09-18 19:54:48 -04:00
parent 3e19f85fad
commit 113b7bd827
4 changed files with 10 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
README.md
View File

@@ -42,6 +42,8 @@ It also includes system management tools:
* A control panel for adding/removing mail users, aliases, custom DNS records, configuring backups, etc.
* An API for all of the actions on the control panel
Internationalized domain names are supported and configured easily (but SMTPUTF8 is not supported, unfortunately).
It also supports static website hosting since the box is serving HTTPS anyway. (To serve a website for your domains elsewhere, just add a custom DNS "A" record in you Mail-in-a-Box's control panel to point domains to another server.)
For more information on how Mail-in-a-Box handles your privacy, see the [security details page](security.md).