[CentOS] Mailers and records MX

Tue Jun 20 18:31:35 UTC 2006
Rodrigo Barbosa <rodrigob at darkover.org>

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On Tue, Jun 20, 2006 at 02:18:17PM -0500, israel.garcia at cimex.com.cu wrote:
> More details:
> 
> 1. The 3 servers are in diferents networks... 
> 2. My higher's mx servers (mx 15 and mx 20) receive a lot of legitimate
> mail.. It also received a lot of spam too.... :-(
> 3. MX1 server is in the main network (backbone).. It's the most
> accesible network of the others Mx's
> 4. Mx 2 and Mx 3 are constantly receiving messages... Like if the dns
> were the same MX record for the three servers..

Have you checked the log files ? Sometimes (expecially with sendmail)
the server will refuse to receive e-mails when under load.

A second question is: are you using some kind of greylisting ?

- -- 
Rodrigo Barbosa
"Quid quid Latine dictum sit, altum viditur"
"Be excellent to each other ..." - Bill & Ted (Wyld Stallyns)

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