I teach first grade religion. I also have a hotmail account that often gets sent to spam when I send a group email. I sent my welcome email and asked parents to give me a quick reply that they got it and if there's was anything I needed to know before the school year starts.
After weeks of sending emails to three parents, checking with the office to verify, sending individual emails, etc I finally got them to respond. One person was "sorry I've been busy. Yes I got them". Dude, I'm busy too but I would be less busy if I wasn't trying to track you down. The other two parents basically said the email they gave is their junk account and they never check it.
I totally get having a junk email account, but why would you give it to your church and the people that will be teaching your kids every week?! I don't need to communicate often, but I do need to occasionally send them stuff. One of them did offer an alternate address, but the other didn't.