emails.txt

imperdiet.nec.leo@etmalesuadafames.net
molestie.in.tempus@nuncQuisque.edu
a.sollicitudin.orci@ut.edu
lorem.Donec.elementum@arcuNunc.ca
et.rutrum.eu@nisidictumaugue.ca
augue@Cumsociis.co.uk
adipiscing@convallisestvitae.com
Nunc.sed.orci@rhoncusDonecest.org
pede@tempuslorem.net
imperdiet@InloremDonec.ca

mini-emails.txt

Sybil|arcu@dolordolor.ca
Neville|euismod@semperNam.co.uk
Sean|In.lorem.Donec@tinciduntaliquamarcu.edu

variante1.sh

while read line; do echo "Sending email to $line"; done < emails.txt

variante2.sh

cat emails.txt |while read line; do  echo "Sending email to $line"; done

variante3.sh

awk -F'|' '{email=$1" <"$2">"} {print "Sending email to "email;}' emails.txt