# Config files on harddisk, in <installdir>/isp/*.xml. Same file format as below. This is only for intranet deployments, we won't be shipping any configs by default anymore, in favor of the following alternatives.
# Try to contact a mail configuration server of the provider
#* Try to contact https://autoconfig.<i>emailaddressdomain</i>/mail/mozilla.xml?emailaddress=<i>emailaddress</i> and see whether that host/URL exists.#* Or (Not not yet implemented) Define , 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 . A similar, but slightly different proposal is described in detail on [[Thunderbird:Autoconfiguration:DNSBasedLookup|DNSBasedLookup]].#* Alternatively (currently implemented), just try to contact https://autoconfig.<i>emailaddressdomain</i>/mail/mozilla.xml?emailaddress=<i>emailaddress</i> and see whether that host/URL exists.
#* That file contains the mail configuration. Content is described on [[Thunderbird:Autoconfiguration:ConfigFileFormat|ConfigFileFormat]].
# Try to find the config at the Mozilla server (if the email provider does not provide the configuration)