Spam Control Considered Harmful

Joe Shaw jshaw at
Thu Oct 30 16:11:09 UTC 1997

On Wed, 29 Oct 1997, Derek Andree wrote:

>   It would seem like a nice feature for Sendmail, but do you think it is
> realistic to assume that everyone would upgrade?  I know of many hosts which
> use "outdated" versions of Sendmail.  Then you would be faced with the
> question of whether to only allow connections from the latest version of
> sendmail (with the sender verification), which would limit it's usefulness.
> Derek Andree
> derek at

Anyone running outdated versions of sendmail has not only not met their
obligations as a sysadmin, but they are also asking to have their networks
owned.  Sendmail is updated so often because it has MAJOR security holes
and bugfixes.  I guarantee you that if you gave me one of the sites that
is running outdated sendmail, they could be "owned" in a very short time.
There are far too many remote sendmail exploits for older versions to not
upgrade.  Checking and doing a search on
sendmail will verify this.  So, upgrading should be a prioity to anyone
who's running anything less than Sendmail 8.8.8.

Joe Shaw - jshaw at
NetAdmin - Insync Internet Services

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