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Re: [vps-mail] /dev/null in virtusertable on VPS2?



Hi:

Using @domain.name => unknown and alias uknown => /dev/null uses a bit more server resources however you don't get into the situation where the email had a spoofed sender/domain and you either get bounce backs from their mail server saying "User unknown" or you get tagged as spamming them.

Scott Wiersdorf wrote:

On Thu, Jun 17, 2004 at 02:10:28PM -0700, Abigail Marshall wrote:
GS> On Thu, 17 Jun 2004 12:41:03 -0500, "Look at SomethingCool.com"
GS> Just add this to your /etc/mail/virtusertable and then run "make" in
GS> /etc/mail:

GS> @yourdomain.tld                 some_account_which_does_not_exist

What's the point of doing this as opposed to simply NOT
having a catchall for the domain? That is, NO entry for
@domain.tld?

If you don't have an entry, and a username or alias matches the left
side of the email address (the part before the '@'), sendmail will
accept the mail and try to deliver it. Other than that, there is no
difference (i.e., the connecting server will get a 'User unknown'
message).

It's a matter of preference and style, but I always explicitly list
all email addresses that should accept mail in my virtusertable and
put a catchall for 'nouser' so that I always know precisely the path
taken by an email as it came through the server.

Scott

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