Whilst editing /usr/local/courier/etc/imapd, I cam across the following line in a howto.
TCPDOPTS="-nodnslookup -noidentlookup"
Now, the imapd commented out lines say this shouldn't be changed. I can't accept that at face value, otherwise it wouldn't be in the configuration file.
Because couriertcpd is used for other things besides incoming IMAP connections.
Can anyone give me a quick explanation as to what this line is for? What other options are available? Etc..
See the man page for couriertcpd.
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