Currently messages from intervals are delivered by the messages@intervals.icu
account, with no user-friendly name set; this causes most MUAs to display only the confusing name “messages” as the sender.
From: messages@intervals.icu
To: $user
Message-ID: <$id@intervals-$id2>
Subject: Plan for the week - Intervals.icu
Changing line one (1) to read:
From "intervals.icu" <messages@intervals.icu>
Would clarify the sender for recipients and should be a pretty easy patch to implement