RE: Address Rewriting question

Dear Victor,

I have just created the mapping in /etc/postfix/virtual:

/(..*)@test\.com.cy$/ ${1}/type=3DPLMN@testing.com.cy

And I sent an email to helo@test.com.cy

,but the email is sent to my internal server with the recipient's
address unchanged.

The virtual_alias_maps is equal to /etc/postfix/virtual

What could be the problem?

BR/Ioannis



-----Original Message-----
From: owner-postfix-users@postfix.org
[mailto:owner-postfix-users@postfix.org] On Behalf Of Victor Duchovni
Sent: 21 January 2005 18:27
To: postfix-users@postfix.org
Subject: Re: Address Rewriting question

On Fri, Jan 21, 2005 at 06:20:58PM +0200, Ioannis Michaelides wrote:

> The problem is that I do not know my recipients, as the number grows=20
> 200-300 per day, because the messages are delivered to mobile=20
> subscribers (I am working for a mobile operator).

Implement a suitable query mechanism (LDAP, MySQL, PGSQL, TCP map, ...)
to obtain the valid user list on the fly...

> The actual server that
> receive the email and transforms it to an MMS knows the recipients and

> reject the email in case the recipient is wrong.

This creates bounces back to joe-job victims when your domain is
dictionary attacked. Not only does this create a serious problem for
others, it also saturates your queue. Don't do this.

/(..*)@example\.com$/ ${1}suffix@example.com

will add "suffix" to every address, but once again this is not a good
idea, you really must implement recipient validation...

--=20
Viktor.

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