addressee
aeroplane
aircraft
airplane
communicate
communication
correspondence
courier
deliver
deliverer
delivery
design
elements
email
glyph
icons
information
isolated
letter
logotype
mail
message
messaging
newsletter
outbound
outbox
outgoing
outlined
paper
paperplane
plain
plane
post
rectangle
send
sendmail
service
silhouette
solid
solidicon
solution
square
success
symbol
target
transfer
transport