[Exim] bad local parts [was trailing dot in localpart]

On Thu, 18 Oct 2001, Philip Hazel wrote:

| incoming SMTP messages. The new default configuration uses this
| mechanism to reject local parts containing @ % or / by default.

I presume % is to be banned by default as it often allows multihop relay
paths ?

Have you considered banning ! as well, as it allows similar ?

[ the exim box in question won't relay of course, but it might deliver
messages to some internal mail server which has % or ! routing enabled ]

Some of the blacklist sites are actively probing for such spamholes...

Chris