Quoting Philip Prindeville <philipp_s...@redfish-solutions.com>:

On Jan 29, 2022, at 2:44 AM, Michael Menge <michael.me...@zdv.uni-tuebingen.de> wrote:

Hi,


Quoting Дилян Палаузов <dilyan.palau...@aegee.org>:

Hello Philipp,

perhaps sieveshell does not like STARTTLS-only connections.


Issue #530 "sieveshell wants STARTTLS support"
https://github.com/cyrusimap/cyrus-imapd/issues/530


I don't understand.  This worked for 15 years... why is it an issue now?

It worked until it didn't.  I've not made any changes locally.


Some time in the past (2.4 or 2.5) the default value for the ipamd.conf allowplaintext Option changed.

allowplaintext: 0
    If enabled, allows the use of cleartext passwords on the wire.
By default, the use of cleartext passwords requires a TLS/SSL encryption layer to be negotiated prior to any cleartext authentication mechanisms being advertised or allowed. To require a TLS/SSL encryp‐ tion layer to be negotiated prior to ANY authentication, see the tls_required option.

You can use <servicename>_allowplaintext: 1 to allow plaintext for that service only

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Michael Menge                          Tel.: (49) 7071 / 29-70316
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