/media/sda-magnetic/david/Dok-15-2023-11-27/fernuni-hagen/cs-i-ii/fsm/fsm/lex-yacc-bash-etc/imap-smtp-bsp00025.txt

a CAPABILTY
a LOGIN "user" "password"
a LIST "" *
a SELECT INBOX
a FETCH 1 RFC822
a STORE 1 +FLAGS (\Seen \Deleted)
a CLOSE
a EXPUNGE
a SEARCH 
a LOGOUT

HELO/EHLO
MAIL
DATA
RST
VRFY
EXPN
NOOP
QUIT

Destination Port
Source Port 

IHL
TTL
Destination Adress
Source Adress