I know it is old topic but...
you didn't understand my post.
If the game progresses itself, then each time the progression is interrupted and resumed, one message in the inbox is read.
So if I have all the messages read at the start, I start the progress and go to sleep, and each time the progress is interrupted, 10 messages enter the mailbox, then each time 1 message will be read (the oldest one), so with 5 progresses I will have 50 messages in my e-mail box minus 5 messages read.
Sometimes an important message will scroll there and I won't read it, it would be nice to work on it so that the most important messages FOR ME would be unreadable, and it would be best if no one read my personal mail after each suspension of progress!