E-mail hoarder
someone who keeps all their E-mails like they're hiding from the IRS. they think deleting one might cause a catastrophic meltdown.
'I had to read through 200 E-mails to find the one that said 'you got a raise.' It was worth it.'
'I keep my E-mails because I might need them to prove I was alive in 2018.'
'I don't delete E-mails. I let them pile up like a mountain of shame.'