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@benoitjpnet
Last active December 16, 2015 10:19
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Find userid of mails in mailq.
for i in $(mailq | grep -Eo [A-F0-9]{10} | tr -s '\n' ' '); do postcat -q $i | grep userid | grep -Eo "[0-9]{4,}" >> tmp/userid; done
sort -n /tmp/userid | uniq
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