Possible .bat or program to configure multiple copy(ctrl+c

So im doing an email thing where i have to configure multipe emails but alot of them require the same credentials,

is there a way to create a .bat, or "software" to be able to copy multiple at one time to avoid having to type it out repeatedly?

i.e...... 1) Paswordfortheexample
2)Example2
3)Instead of typing this out 10000 times just press ctrl+v until it shows up

What are you trying to do? Send 10000 emails or configure 10000 email accounts or what? What email client are you using? Don't understand, sorry.

it was just a question as to if it was possible

gmail and microsoft will limit you to 500 per day so you'll need to use a third party solution. I've never used it but you could try Send Better Email | MailChimp which has a free plan.