Strange email messages. I've been receiving these strange email messages in my junk box on my iphone 6s. The sender is usually someone I know who I have recently sent or recieved but the senders names are usually changed by about 3 to 6 letters. The message wants me to open a file that's attached, WHICH I NEVER DO! All these type of messages come via my @shaw.ca email. They also only appear only on my iPhone 6s in the junk folder, never on my desktop windows email.

Now is this a shaw email problem, apple iPhone problem, or telus which is my cellular provider? Is there anything I can do about it?