Changes

## Try to contact https://autoconfig.<i>emailaddressdomain</i>/mail/mozilla.xml?emailaddress=<i>emailaddress</i> and see whether that host/URL exists. The returned file must have the [[Thunderbird:Autoconfiguration:ConfigFileFormat|ConfigFileFormat]] as below.

## and/or, define a DNS TXT record on domain example.net (for my.account@example.net) which contains an URL like e.g. https://www.example.net/mozilla.xml , which also returns this file format. A similar, but slightly different proposal is described in detail on [[Thunderbird:Autoconfiguration:DNSBasedLookup|DNSBasedLookup]].

# Try to find the config at the Mozilla server (if the email provider does not provide the configuration)

#* Fetch https://autoconfig.mozillamessaging.com/mail.xml?domain=<i>emailaddressdomain</i>. (Email address of user is not passed, otherwise Mozilla would have a list of email addresses of all users.)