Hi,
I'm realatively new to the Astaro and have been digging around to get myself up to speed, specifically for the Anti Spam side of things. I've had a dig through the forum but have struggled to find answers and was wondering if someone could help answer my questions or point me in the right direction.
Our MX is with the ISP and they relay the mail down to us. We have the ISP's servers listed in "Relaying" and "Allow upstream/relay hosts only" is selected.
1 Should greylisting be switched off?
- My thought was that this will only cause delays in receiving email from the ISP but I'd like someone that knows more than me to confirm this!
2 The same question applies to "Reject invalid HELO / missing RDNS"
- I'm not sure if this function looks back through all the headers or if it just applies to the SMTP connection?
3 I read in a few posts that removing the expression filters can help.
-At the moment I have 2 words in there and was wondering if I need to enclose them in speach marks?
4 Is it possible to reconfigure the bounce message that the sender of a blocked email would receive?
-Currently if a client sends us something and it gets blocked they get this...
~#~
----- The following addresses had permanent fatal errors -----
(reason: 550 Administrative prohibition)
----- Transcript of session follows -----
... while talking to astaro.***.co.uk.:
>>> DATA
me@***.co.uk
Action: failed
Status: 5.2.0
Remote-MTA: DNS; astaro.***.co.uk
Diagnostic-Code: SMTP; 550 Administrative prohibition
Last-Attempt-Date: Wed, 24 Feb 2010 13:13:01 GMT
~#~
I'd like to customise the diagnostic code as "550 Administrative prohibition" doesn't help the majority of our clients.
With a bit of luck my screen shots will come through.
AntiSpam01.jpg
AntiSpam02.jpg
AntiSpam03.jpg
Thanks in advance,
Greg
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