I'm not entirely comfortable with blindly white-listing anyone who posts to linaro-dev with something that doesn't look like spam, for several reasons:
1. That is not a great way to run a moderated mailing list.
2. IT aren't going to be in the best position to say whether or not the sender should be able to send to linaro-dev, even if they didn't send spam.
3. The whitelist is going to start getting very big very quickly, reducing the effectiveness of the mailing system and of the moderation function.
This may need a bit more thought, I suspect. I suggest that there should be more than one non-IT person with administrator access to the list so that the moderator queue can be checked more frequently that is currently being done at the moment.
Philip