"Was named" focuses on the time in the past when her parents decided on a name for her.
"Is named" focuses on the present and the fact that she has the same name as you.
At present she has the same name as the OP, but at present the email has reached the recipient or is being transmitted rather than 'is sent', so 'is sent' is wrong. May I understand it this way?
The e-mail is sent every day is OK (perhaps, if someone sends the same e-mail (spam?) every day). But you can't name someone (or give someone) a different name every day. The meaning of the verbs is different which causes different usage.
I asked about it on another forum, you may go to have a look. emsr2d2 had not replied to my question in post#7, so I asked there. I hope it was acceptable.