"Reject mail for users over quota" and local forwards

[sneakert]

Hello,

I've enabled the "Reject mail for users over quota" setting, and it works for messages directly sent to the account that's being over quota (that is, exim responds with a 550 Mailbox quota exceeded after the RCPT TO). However, if for instance info@example.com is a forwarder to john@example.com, the message is accepted, and a bounce is sent if the john@example.com mailbox is full.

Is there a way to have exim say "550 Mailbox quota exceeded" for local forwarders to full mailboxes as well?

[cPanelMichael]

Hello

Please clarify if the following scenario is similar to what you are experiencing.

1. "Reject mail for users over quota" is enabled.
2. "test01@example.com" - Email account exists and is not full.
3. "test02@example.com" - Email account exists and is full.
4. A forwarder for "test01@example.com" to "test02@example.com" exists.

Under this scenario, sending an email to "test01@example.com" will result in the following:

1. The message is delivered to "test01@example.com".
2. A bounce is sent to the sender alerting them the message to "test02@example.com" failed due to the mailbox being full.

Am I correct in saying that you want the message to "test01@example.com" to bounce as well?

Thank you.

[ruzbehraja]

Very similar to this:

http://forums.cpanel.net/f145/no-aut...tml#post865742

Probably the forwarders need to filter out the backscatter mails. But I dont know how that will work.

[sneakert]

Hello

Please clarify if the following scenario is similar to what you are experiencing.

1. "Reject mail for users over quota" is enabled.
2. "test01@example.com" - Email account exists and is not full.
3. "test02@example.com" - Email account exists and is full.
4. A forwarder for "test01@example.com" to "test02@example.com" exists.

Under this scenario, sending an email to "test01@example.com" will result in the following:

1. The message is delivered to "test01@example.com".
2. A bounce is sent to the sender alerting them the message to "test02@example.com" failed due to the mailbox being full.

Am I correct in saying that you want the message to "test01@example.com" to bounce as well?

Thank you.

Thank you for your response.

There is no separate account configured for test01@example.com, test01@example.com just exists as a forwarder. A message sent to test01@example.com is accepted (and then bounced, which causes unfortunate backscatter to possibly faked addresses), a message to test02@example.com is rejected immediately, so my server does not have to send a bounce.

Small excerpt from a telnet session to the server:

MAIL FROM: sneakert@example.net         
250 OK
RCPT TO: test02@example.com
550 Mailbox quota exceeded
RCPT TO: test01@example.com
250 Accepted

At this time, the server might already know test01@example.com ultimately gets delivered to test02@example.com, which is obviously full, yet it accepts the message.

[cPanelMichael]

Very similar to this:

http://forums.cpanel.net/f145/no-aut...tml#post865742

Probably the forwarders need to filter out the backscatter mails. But I dont know how that will work.

I read through that feature request, however it looks to be a little different than the request made by the original poster on this thread. From what I can tell, the original poster wants an additional bounce message sent. In the feature request you posted, there is a request to prevent Exim from sending an auto-response in some forwarding scenarios.

Thank you.

[cPanelMichael]

There is no separate account configured for test01@example.com, test01@example.com just exists as a forwarder. A message sent to test01@example.com is accepted (and then bounced, which causes unfortunate backscatter to possibly faked addresses), a message to test02@example.com is rejected immediately, so my server does not have to send a bounce.

I have moved this thread into it's own feature request on the Feature Requests forum.

Thank you.

[cPanelDavidG]

Hello,

I've enabled the "Reject mail for users over quota" setting, and it works for messages directly sent to the account that's being over quota (that is, exim responds with a 550 Mailbox quota exceeded after the RCPT TO). However, if for instance info@example.com is a forwarder to john@example.com, the message is accepted, and a bounce is sent if the john@example.com mailbox is full.

Is there a way to have exim say "550 Mailbox quota exceeded" for local forwarders to full mailboxes as well?

Right now, it seems cPanel&WHM is doing everything it can to get mail sent to john@example.com delivered, and if it has a forwarder then it forwards to (potentially) an external email address which has not reached its quota and delivers the mail. Since the actual email account at john@example.com is full, a bounce is sent saying the mailbox is full. This allows the person to still get the email at their alternate mailing address while still informing the email sender, your message may not be read because their mailbox is full.

What is the alternative that you want implemented? The mail not be forwarded? The bounce email not go to the sender? Please clarify.