dovecot-submission SMTP send error with Thunderbird (BODY=8BITMIME)

[Stephan Bosch]

Op 12/24/2017 om 7:54 AM schreef Reuben Farrelly:
> Hi again,
>
> On 24/12/2017 7:11 am, Stephan Bosch wrote:
>> Op 12/23/2017 om 7:18 AM schreef Reuben Farrelly:
>>> Hi,
>>>
>>> With latest 2.3 -git (and 2.3.0 release), I'm running into this error
>>> with Thunderbird:
>>>
>>> "An error occurred while sending mail. The mail server responded:
>>> 5.5.4 Unsupported mail BODY type. Please verify that your email
>>> address is correct in your account settings and try again."
>>>
>>> This is fatal and means Thunderbird cannot use the submission service
>>> - fortunately I can revert back to a native Postfix service which
>>> works.
>>>
>>> Here's a tcpdump of the conversation:
>>>
>>> thunderstorm /etc/dovecot/conf.d # tcpdump -A port 587
>>>
>>> dropped privs to tcpdump
>>> tcpdump: verbose output suppressed, use -v or -vv for full protocol
>>> decode
>>> listening on eth0, link-type EN10MB (Ethernet), capture size 262144
>>> bytes
>>
>> I cannot reproduce this behavior so far.
>
>> I will continue experimenting a bit. I still have to actually try this
>> with Thunderbird. Any other configuration I should know about (`dovecot
>> -n`)?

Fix pending:

https://github.com/stephanbosch/dovecot-core/commits/fix-submission-thunderbird

Regards,

Stephan.