Thunderbird Autoconfig

FreeMinded

We are currently testing Grommunio (Appliance from Download Section) and I can't figure how to make Autoconfig work for Thunderbird.
The Autoconfig check on the Domain page is green and looks OK.

If I'm not mistaken Thunderbird expects the config at https://autoconfig.domain.tld/mail/config-v1.1.xml.
I get a 404 from my Grommunio Server.

Has anyone Autoconfig working for Thunderbird?

crpb

Shouldn't that be like this?
"mailconf=https://grommunio-host.domain.tld/.well-known/autoconfig/mail/config-v1.1.xml"

i also made a few notes on autoconfig stuff here especially those might peak your interest

EDIT: accidentally answered in german first 😛

EDIT2: curl -s https://$(hostname -f)/.well-known/autoconfig/mail/config-v1.1.xml |xmllint --format - should show you what it is cooking up.

crpb

And you should also be able to see a request to see if thunderbird even access it when running something like tail -f /var/log/nginx/*.log |grep config-v1

kpe

I tried to setup autoconfig for Thunderbird based on this documentation: https://wiki.mozilla.org/Thunderbird:Autoconfiguration:DNSBasedLookup

The XML file is available at https://autoconfig.domain.tld/.well-known/autoconfig/mail/config-v1.1.xml and looks fine.
So I configured the TXT record with mailconf=https://autoconfig.domain.tld/.well-known/autoconfig/mail/config-v1.1.xml
But when checking the logs on the Grommunio server Thunderbird always just looks at /mail/config-v1.1.xml for the config and gets an 404. I don't know why Thunderbird is ignoring the DNS Record an will debug this further.
Is there a way to publish the XML also at /mail?

kpe

I think I found the problem.
We deployed a test Grommunio with mail.domain.tld. The mail domain is domain.tld.

The default URL Thundbird is looking for the config is https://autoconfig.maildomain.tld/mail/config-v1.1.xml which is what I see in the Grommunio logs but the correct URL for Grommunio is https://autoconfig.maildomain.tld/.well-known/autoconfig/mail/config-v1.1.xml.
Thunderbird also tries https//maildomain.tld/.well-known/autoconfig/mail/config-v1.1.xml as fallback but because the maildomain (domain.tld) is not the same as the domain for Grommunio (mail.domain.tld) it fails as well.
https://wiki.mozilla.org/Thunderbird:Autoconfiguration

For testing I added an A record domain.tld pointing to the Grommunio server. (In reality this wouldn't be possible as the domain.tld mostly points to the website of a company). Thunderbird was then able to find the autoconfig but still failed because in the autoconfig XML generated by Grommunio the mail domain is mail.domain.tld but Thunderbird is looking for a config for domain.tld.

I still couldn't figure out why Thunderbird is ignoring the DNSBasedLookup where the correct URL is provided.

So far I think we have to provide the autoconfig also at https://autoconfig.domain.tld/mail/config-v1.1.xml and change the maildomain in the XML.
Am I missing something or did we setup up something wrong?

crpb

You mean the <domain>fqdn</domain>? hmm...

From the wiki:

Try to contact http://autoconfig.emailaddressdomain/mail/config-v1.1.xml?emailaddress=emailaddress , e.g. http://autoconfig.example.com/mail/config-v1.1.xml?emailaddress=fred@example.com, as well as fallback http://example.com/.well-known/autoconfig/mail/config-v1.1.xml, and see whether that host/URL exists. The returned file must have the ConfigFileFormat as below.

@jengelh could that be implemented as with autodiscovery so it would return <domain>mail.tld</domain> if queried with ?emailaddress=my@mail.tld?
Or is that not needed anyway? I see that it fills the <username>my@mail.tld</username> if queried like that
e.g. curl -sk https://$(hostname -f)/.well-known/autoconfig/mail/config-v1.1.xml?emailaddress=my@mail.tld |xmllint --format -
And also that /mail/config-v1.1.xml

if xmllint is missing, zypper in libxml2-tools / zypper search --provides /usr/bin/xmllint

crpb

so <domain> shouldn't be problematic if i read this correct as it is only about the provider
https://wiki.mozilla.org/Thunderbird:Autoconfiguration:ConfigFileFormat