I get an awful lot of email, and I dispense with it quickly. Things are either “To do” (so they go into my “to do” system), or they are “For information”, so I file them appropriately – or they are Junk.
If I receive unsolicited email from a band promoting a gig or a record – then, like all spam, it gets filtered and I never hear from them again no matter what they send.
In this shorthand sorting system, sometimes I fire off responses a little too quickly and casually. Tonight I made a hasty mistake that I feel bad about and I apologise unreservedly to the band in question.