Many such emails, unfortunately cite no sources.
The Holy Prophet (SAW) said,
" Stop doing everything during the Azaan, even if you are reading the Quran.
The person who talks during the Azaan will not be able to say the Kalima E Shahada on his/her death bed".
This part is a fabrication. There is no such hadeeth.
I've had that email a few times now, and each time I email back the sender with the info in the link, and ask them to send it to everyone they forwarded the original email to, and that those recipients in turn send it to others, so that hopefully more people will learn that there is no such hadeeth.
There is no hadeeth source cited for those six things that Rasoolullah :saws: is quoted as saying either, though I found the below:
And Allah knows best in all matters.