EMail Channel incompatible encoding regexp match (ASCII-8BIT regexp with UTF-8 string)

Infos:

  • Used Zammad version: 3.2.x
  • Used Zammad installation source: (Debian Deb
  • Operating system: Debian 10
  • Browser + version: Firefox 72.0.2

Expected behavior:

  • Adding a Mail Channel. It should add the channel

Actual behavior:

  • When adding a Mail Account the wizzard fails with the error message incompatible encoding regexp match (ASCII-8BIT regexp with UTF-8 string)
  • Locales Settings:
LANG=de_DE.UTF-8
LANGUAGE=
LC_CTYPE="de_DE.UTF-8"
LC_NUMERIC="de_DE.UTF-8"
LC_TIME="de_DE.UTF-8"
LC_COLLATE="de_DE.UTF-8"
LC_MONETARY="de_DE.UTF-8"
LC_MESSAGES="de_DE.UTF-8"
LC_PAPER="de_DE.UTF-8"
LC_NAME="de_DE.UTF-8"
LC_ADDRESS="de_DE.UTF-8"
LC_TELEPHONE="de_DE.UTF-8"
LC_MEASUREMENT="de_DE.UTF-8"
LC_IDENTIFICATION="de_DE.UTF-8"
LC_ALL=

Steps to reproduce the behavior:

  • Adding a Mail Account

Is this the complete error message you receive?
Where do you see this error message?

edit: Please also let us know which dark magic mail server you’re trying to connect to :wink:

Its the hole message. I’ve added a screenshot, that should clear things up.


The Mailserver is a selfhosted dovecot based mail server.

That’s odd, never had a Dovecot not wanting to talk to Zammad (yet).
Do you happen to have E-Mails in the affected mailbox?

If so, could you check if you can solve this issue by temporary moving all mails away from your mailbox?
Possibly this is an issue with an existing mail that Zammad can’t import or the fetching process dies during that process in general.