limiting each users mail sending size

[DukeNM]

How can i limit each users mail sending size ??

is this possible ?

i know there is a maxMAILSIZE but that applies globbaly to all users.

but what about for each individual user.

say i want user X to be able to send 5 MB max
while user Y be able to send 1MB max

i am running sendmail and fetchmail.

[Matej Vela]

On 2004-07-07, DukeNM <tride...@softhome.net> wrote:
> How can i limit each users mail sending size ??
>
> is this possible ?
>
> i know there is a maxMAILSIZE but that applies globbaly to all users.
>
> but what about for each individual user.
>
> say i want user X to be able to send 5 MB max
> while user Y be able to send 1MB max

* Make sure confMAX_MESSAGE_SIZE is undefined to avoid advertising a
maximum size before receiving sender information.

* Put a list of users whose maximum is 5 MB in /etc/mail/big-users, one
per line. If you need additional classes of users, duplicate each
{BigUsers} line below with a different class name, e.g. {HugeUsers}.

* Add the following to sendmail.mc. It assumes users are honest about
their return addresses; if not, you'll need to implement authentication
and check $&{auth_authen}.

LOCAL_CONFIG
F{BigUsers}/etc/mail/big-users
Kstorage macro

LOCAL_RULESETS
SLocal_check_mail
R$* $: <?> $>canonify $1
R<?> $={BigUsers} < @ $=w . > $: 5000000 privileged max size
R<?> $* $: 1000000 default max size
R$+ $: $1 $(storage {MaxMsgSize} $@ $1 $)
R$+ $: $(arith l $@ $&{msg_size} $@ $1 $)
RFALSE $#error $@ 5.2.3 $: "552 Message size exceeds " $&{MaxMsgSize}

Scheck_compat
R$* $: $(arith l $@ $&{msg_size} $@ $&{MaxMsgSize} $)
RFALSE $#error $@ 5.2.3 $: "552 Message size exceeds " $&{MaxMsgSize}

[Per Hedeland]

In article <slrnceoobk...@home.irb.hr> Matej Vela <mv...@irb.hr>
writes:

>
>* Add the following to sendmail.mc. It assumes users are honest about
> their return addresses; if not, you'll need to implement authentication
> and check $&{auth_authen}.

It also assumes that "they" (i.e. the SMTP clients that send their mail)
use the SMTP SIZE extension (and are honest about the value given).

--Per Hedeland
p...@hedeland.org

[Matej Vela]

No, the second check sees the actual message size (as noted in op.txt):

>>Scheck_compat
>>R$* $: $(arith l $@ $&{msg_size} $@ $&{MaxMsgSize} $)
>>RFALSE $#error $@ 5.2.3 $: "552 Message size exceeds " $&{MaxMsgSize}

However, now that I've tested it again, I found {MaxMsgSize} gets
mysteriously unset between check_mail and check_compat, so *all*
messages bounce. :-( The following does work:

LOCAL_CONFIG
F{BigUsers}/etc/mail/big-users
Kstorage macro

LOCAL_RULESETS
SLocal_check_mail
R$* $: <?> $>canonify $1
R<?> $={BigUsers} < @ $=w . > $: 5000000 privileged max size
R<?> $* $: 1000000 default max size

R$+ $: $1 $| $(arith l $@ $&{msg_size} $@ $1 $)
R$+ $| FALSE $#error $@ 5.2.3 $: "552 Message size exceeds " $1

Scheck_compat
R$* $| $* $@ $>Local_check_mail $1

[Per Hedeland]

In article <slrncf3f1c...@home.irb.hr> Matej Vela <mv...@irb.hr> writes:
>On 2004-07-09, Per Hedeland <p...@hedeland.org> wrote:
>> In article <slrnceoobk...@home.irb.hr> Matej Vela <mv...@irb.hr>
>> writes:
>>>* Add the following to sendmail.mc. It assumes users are honest about
>>> their return addresses; if not, you'll need to implement authentication
>>> and check $&{auth_authen}.
>>
>> It also assumes that "they" (i.e. the SMTP clients that send their mail)
>> use the SMTP SIZE extension (and are honest about the value given).
>
>No, the second check sees the actual message size (as noted in op.txt):

Sorry, missed that...

--Per Hedeland
p...@hedeland.org