Hi,
Once in a while (not too frequently yet), we seem to get
people probing our mail server by sending various commands
on the SMTP port. I have seen no evidence of an actual
issue, but what is best practice in this case? Should I
be bothered enough to blacklist the domain/email address?
The same
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Gora Mohanty writes:
Hi,
Once in a while (not too frequently yet), we seem to get
people probing our mail server by sending various commands
on the SMTP port. I have seen no evidence of an actual
issue, but what is best practice in this case?
On 11 March 2012 21:31, Ashish SHUKLA ashish...@lostca.se wrote:
[...]
If you're planning to block, then maybe temporarily block or tarpit the IP
address in firewall. Usually, MTAs won't do this kind of thing, only abusers.
Well, true, but I would really like to at most block specific addresses
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Gora Mohanty writes:
On 11 March 2012 21:31, Ashish SHUKLA ashish...@lostca.se wrote:
[...]
Or you can also use greylisting daemon, esp. spamd[1] (only works on *BSD) or
postgrey/policyd (or other greylisting software) for postfix.
[...]
On Sunday 11 Mar 2012, Gora Mohanty wrote:
On 11 March 2012 21:31, Ashish SHUKLA ashish...@lostca.se wrote:
Or you can also use greylisting daemon, esp. spamd[1] (only works
on *BSD) or postgrey/policyd (or other greylisting software) for
postfix.
Thank you: This looks almost exactly