The date format is <month> <day>, yet in Portugal we would use <day> <month>. In the admin menu I’ve searched for every date format I can find and switched them all to <day> <month> and the email doesn’t change.
In the body of the email, more specifically in the list of popular posts, another occurence of this can be seen:
I have been making translations on my own Discourse (overriding the string value in the admin menu), checking if they appear correctly and then I submit changes on Transifex. I can tell you I have already submited a few
Are there strings to be translated in the Transifex project that cannot be overwritten in the admin menu?
I’m talking about translating the actual text “A valid group name to be invited to all automated messages.” from the site setting “site contact group name”, for example. As far as I know, you can only translate that in Transifex, right?
Every string available on Transifex is also available in Admin -> Customize Text. For example, the site setting you mentioned can be found by searching for site_contact_group_name.
Of course it’s always better to translate on Transifex. That way everyone benefits from your work.