Created
July 30, 2020 05:01
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Getting email recipient addresses from maildir
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| #! /bin/sh | |
| # | |
| # Get a directory name as input and grep the address the mail is sent to | |
| # | |
| # Based on a script by Joerg Reinhardt, but don't blame him for my mistakes | |
| # Check for argument or help argument respectively | |
| if [[ ($1 == "") || | |
| ($1 == "-h") || | |
| ($1 == "--help") || | |
| ($1 == "-help") ]]; then | |
| echo "Usage: "$0" <Mail-directory> <Email-domain>"; | |
| fi; | |
| # Make regex comparison case insensitive | |
| shopt -s nocasematch | |
| # Check if parameter is a directory | |
| if [[ -d $1 ]]; then | |
| # Set target filename | |
| dirname=`echo $1 | awk '{while(substr($0,length($0),1)=="/"){$0=substr($0,1,length($0)-1);}print $0;}'`; | |
| dumpfile=$dirname'.dump'; | |
| # Check if directory is empty | |
| if [[ `find $dirname -type f` == "" ]]; then | |
| echo $dirname": directory empty." | |
| exit 1; | |
| fi; | |
| regexDomain=$2+"$"; | |
| # Collect files inside maildir directories | |
| find $1 -regex '.*/cur/.*' -type f -print0 | while read -d $'\0' i; do | |
| # Output progress information | |
| echo -n -e \\r" " | |
| echo -n -e \\rprocessing "$i" | |
| # Look for senders email address in the order | |
| # 'To:' | |
| # 'X-Original-To:' | |
| # 'Delivered-To:' | |
| fromline=`grep '^To: ' "$i"`; | |
| # Parse 'To:' field | |
| from=`echo $fromline | awk 'BEGIN{FS="<";}{if($0~/</) {pos=index($2,">");if(pos!=0) {print substr($2,1,pos-1);}} else {pos=index($0,":");print substr($0,pos+1);}}'`; | |
| if [[ $from == "" || ! $from =~ $regexDomain ]]; then | |
| # Parse 'X-Original-To:' Field | |
| fromline=`grep '^X-Original-To: ' "$i"`; | |
| from=`echo $fromline | awk 'BEGIN{FS="Line:";}{print $2;}'`; | |
| if [[ $from == "" || ! $from =~ $regexDomain ]]; then | |
| fromline=`grep '^Delivered-To: ' "$i"`; | |
| # Parse 'Delivered-To:' field | |
| from=`echo $fromline | awk 'BEGIN{FS="<";}{if($0~/</) {pos=index($2,">");if(pos!=0) {print substr($2,1,pos-1);}} else {pos=index($0,":");print substr($0,pos+1);}}'`; | |
| if [[ $from == "" || ! $from =~ $regexDomain ]]; then | |
| # Looks like this email was not send to the user | |
| continue; | |
| fi; | |
| fi; | |
| fi; | |
| echo $from | tr '[:upper:]' '[:lower:]' >> $dumpfile; | |
| done; | |
| echo; | |
| else | |
| echo $1": not a directory."; | |
| fi; |
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