57 lines
1.2 KiB
Plaintext
57 lines
1.2 KiB
Plaintext
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# mailing list protocol!
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# depends on a bunch of files in $HOME/lists --
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# a "listname.users" containing all of the users
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# and (optionally) a "listname.senders" if you want to restrict that
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SHELL=/bin/sh
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SENDMAIL=/usr/sbin/sendmail
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LINEBUF=10000000
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:0
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* ^To:.*list\+\/[a-z0-9_]+@tilde\.town
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LIST=| echo "$MATCH" | sed 's/@.*//' | sed 's/\(.\{16\}\).*/\1/' | tr '[:upper:]' '[:lower:]'
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:0A
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{
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:0A
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* ? [ -e ${HOME}/lists/${LIST}.users ]
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RECIPIENTS=| cat ${HOME}/lists/${LIST}.users | tr '\n' ' '
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:0E
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{ RECIPIENTS="" }
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}
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# Extract envelope sender. Email addresses are actually very complex
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# but we're on tilde.town so our email addresses aren't going to have spaces
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:0A
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* ^From \/[^ ]*
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ENV_SENDER=|echo "$MATCH" | sed "s/ .*//"
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:0A
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ENV_USER=|echo "$ENV_SENDER" | sed "s/@.*//"
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:0A
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{
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# If we have a restricted list of senders we should abort if it's not in there
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:0A
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* ? [ -e "${HOME}/lists/${LIST}.senders" ]
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{
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:0A
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* !? grep -F "${ENV_USER}" "${HOME}/lists/${LIST}.senders"
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# hack to quit procmailrc immediately (WHY)
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{ EXITCODE=77 HOST= }
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}
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}
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:0Af
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| formail -a "X-Loop: list+${LIST}@tilde.town" -I "Reply-To: ${LIST} <list+${LIST}@tilde.town>" -I "From: ${ENV_SENDER}"
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:0A
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{
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UMASK=003
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:0c:
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archive/${LIST}
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}
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:0A
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! ${RECIPIENTS}
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