IMAP Unread E-mail - Search charset for outlook.office365.com

[MerijnF]

Home Assistant release with the issue:

0.86.4

Last working Home Assistant release (if known):
Unknown

Operating environment (Hass.io/Docker/Windows/etc.):

Ubuntu 18.04 venv

Component/platform:

https://www.home-assistant.io/components/sensor.imap/

Description of problem:
I have been having problems while connecting to the outlook.office365.com imap server. With the config below i was getting an unread mail count of 8 allways, even when there were less ore more unread mails.

Problem-relevant configuration.yaml entries and (fill out even if it seems unimportant):

  - platform: imap
    server: outlook.office365.com
    port: 993
    username: 'email@outlook.com'
    password: password

Traceback (if applicable):

Additional information:

Affter learning python and the imap protocol, and inspecting the source code for the component i found that it is linked to the charset. The library used for connection to imap servers sends utf-8 as default encoding for search commands. This (for some unknown reason does not work for outlook.office365.com) i was getting the response [BADCHARSET (US-ASCII)] The specified charset is not supported. witch is split as 8 results. Setting it to None fixed the issue.

When manualy changing line 157 from

            _, lines = await self._connection.search('UnSeen UnDeleted')

to

            _, lines = await self._connection.search('UnSeen UnDeleted', charset=None)

the component works for microsoft email adresses.

Im not sure about making this a configurable value and how contributing to open source projects would work. So here is my issue.

[jimz011]

I tried this but still get that same error though. It is the imap.py right?

[MerijnF]

Indeed its it imap.py.
I noticed some changes to the file in 0.88.x witch improved error handling. For this specific error.

In the new files the line that i changed is 161 from

result, lines = await self._connection.search(self._search)

to

result, lines = await self._connection.search(self._search, charset=None)

[jimz011]

@MysteryMerijn Fixed it for me ty (it appears I editted the wrong file before)

[jimz011]

For the ones looking for this, the file has been renamed in later versions of Home Assistant. You can now find it here:

~site-packages/homeassistant/components/imap/sensor.py

[stale]

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