Hmm...

I'm sure you could copy and paste the whole email to another application, like Word (or something similar), but that'd be a pain as well. I don't out payment notifications, so I can't help. I had issues with USPS for close to a year when printing shipping labels from my iPad. The whole site would act stupid and not allow me to scroll to select certain services, package sizes, etc., but when/if I was able to build the shipment, the label would not print a barcode! Grrr....I submitted inquiries to the site, they told me to see my local USPS office. Ok, so I did, and they said "Well did you let USPS.com know?"...I said Screw It and just kept printing labels with no barcodes...wasn't affecting delivery that I could tell.