centos-bounces at centos.org <> scribbled on Tuesday, June 20, 2006 2:18 PM: > 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.. > > Regards > Israel > > -----Mensaje original----- > De: replies-lists-centos at listmail.innovate.net > [mailto:replies-lists-centos at listmail.innovate.net] > Enviado el: Tuesday, June 20, 2006 1:04 PM > Para: SV-Israel Garcia > Asunto: Re: [CentOS] Mailers and records MX > > are you seeing spam or "real" mail through the higher ordinal > MX hosts? > > > spammers often target higher ordinal MX hosts because they > assume that there are fewer blocks there (e.g., the user base > isn't checked). > > if it's "real" mail, it can simply be that the lower ordinal > MX hosts are seen as slow by some sender's mail hosts. > > - Rick > > > > > ------------ Original Message ------------ >> Date: Tuesday, June 20, 2006 02:01:06 PM -0500 >> From: israel.garcia at cimex.com.cu >> To: centos at centos.org >> Subject: [CentOS] Mailers and records MX >> >> I've installed bind on centos 4.3.. This is a part of my > config file: >> >> example.com. IN MX 10 mail.example.com. >> example.com. IN MX 15 mail1.example.com. >> example.com. IN MX 20 mail2.example.com. >> >> mail.example.com. IN A x.x.x.x >> mail1.example.com. IN A x.x.x.x >> mail2.example.com. IN A x.x.x.x >> >> >> Every seems to be fine, but I'm constantly receiving > messages in my 3 >> MX servers, even if mail.example.com (the less MX record) > is available > >> waiting for connections from outside... Why if my less mx record >> server is available the others servers are constantly receiving >> messages for my domain? >> >> Thanks for your time >> Israel I'd just install MailScanner on all 3 and not worry about what mail comes in where. Mike