Feature Request: Whitelisting domains
I'd really like the ability to whitelist a domain rather than add an email address to the address book. I work with booking websites that create unique email addresses for each booking and they keep ending up in spam. I'd like to be able to whitelist the domain they're coming from instead of trying to train the spam cannon that they are not an issue.
Opaite Mbohovái (2)
Suggestions such as this fit best at connect.mozilla.org, where ideas can be posted and get responses from others for possible inclusion. Thunderbird doesn't have such a feature as whitelisting or blacklisting, but it's a nice idea. I encourage you to share your suggestion there.
If they are ending up in a Spam, not Junk, folder, it's due to the filters applied by the mail service, before mail is accessed by TB. See if you can use webmail controls to whitelist domains.