Command Line Application Development in C# to run check for new files or emails via FTP or POP or IMAP

App Specs
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a Windows command line app, that runs and connects to a web server via FTP or pop3 or IMAP

checks for an email or file received in the last 1 minute with the subject line "Your account: Access from new computer"

looks to confirm "user456" is present in the email and if yes, then search for "Login Code THWRD" line 58/59

outputs in the command line code=THWRD


for example, I will run

getcode.exe -ftp:abccompany.com -ftpuser:user1 -ftppass:abcefg -emailsinlastminutes:2 -targetsubject:"Your account: Access from new computer" -targetbody:user456 -checkagaininseconds:10

it will output the following
# please wait connecting....
# email NOT found in the last 2 minutes (s)
# trying again in 10 seconds
# trying again in 10 seconds
# trying again in 10 seconds
# trying again in 10 seconds
# found 3 emails with time stamps from last 2 minutes
# checking 1st email "1704583136.M..."
# searched and did not find the subject "Your account: Access from new computer"
# checking 2nd email "1704582990..."
# searched and did find the subject "Your account: Access from new computer"
# searching for "user456"
# "user456" found
# searching for "Login Code"
# "Login Code" found "THWRD"
# exiting
# code=THWRD

output.txt THWRD

* Requirements

code must be written in C-sharp

it must be super fast. to connect and check. for example, it should not take more than 5 seconds to connect and check for results.

must have a time-stamped log...