help plz, to msg friends

i been inactive since 1 month before rampage ended and i had 2 friends/guildmates, we 3 man guild
is there any way to contact them via path of exile game client? like send them a message so if they ever login, they can see the message or,
when was the last time they logged on? we were damn close and i had to do exam so had to stop playing
some1 halp plz

use their account name you can see in your friend list to PM them here on forums

they are perhaps taking a break until the new leagues start