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On 25 Jan 00, at 13:19, Rick McMillin wrote:
> To be more specific, let's say I implement quotas on my mail
> server. If someone who is not a customer of mine (an AOL user
> for example) tries to send one of my customers an email
> and that customer of mine has reached their quota limit, who's
> queue will that message go to? Always the sender's? Always
> mine? Or even sometimes mine and sometimes the sender's depending
> upon the situation?
Depends on implementation:
1. If your server replies "500 user over quota" as soon as it sees
RCPT TO, it would be bounced from the sender's machine (ie. it
won't hog your line at all). qmail never does that.
2. If your server replies "400 user over quota" as soon as it sees
RCPT TO, it would be kept on the sender's machine until youn
accept it, or until it expires. qmail never does that either.
3. If you accept the message first (as happens with qmail) and then
check for quota, it's your expense. You have three possibilities:
a. Return hard error from quota check. (You need special .qmail
action, or patch to qmail-local.) Then the message is bounced
back immediately.
b. Return temporary error from quota check. The message is being
kept in your queue until the user cleans the mailbox, or the
message expires and is bounced back.
c. Make special delivery for mail over quota (to some special
disk/computer) and inform user "you have received mail over your
quota; if you want to see it, clean your mailbox and pay us $5 for
loading it from a backup server into your mailbox" or such.
Clear? Hope it helps...
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--
Petr Novotny, ANTEK CS
[EMAIL PROTECTED]
http://www.antek.cz
PGP key ID: 0x3BA9BC3F
-- Don't you know there ain't no devil there's just God when he's drunk.
[Tom Waits]
