Accept or Forward mail based on source
in [Sendmail]
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From: Andrzej Adam Filip on 18 Feb 2010 11:39 Moby <moby(a)mobsternet.com> wrote: > I have a weird requirement. Say I am the backup MX for a domain. If I > get email from any machine for domain A, I want to deliver it as per my > virtusertable rules (this part is working - I add the appropriate > entires in my virtusertable and also add the domain name to my > local-host-names). However, if people on specific hosts using my mail > server send email to the domain, I want it sent out, as per MX lookup > rules etc (assuming primary MX is up and running). How can I do this? > > The crux of the matter appear to be: > 1) In order to be able to accept mail for the domain, I have to add it > to my local-host-names. > 2) Once added to my local-host-names, my server always accepts mail for > the domain and does not do an MX lookup. > > I need to be able to have my sendmail server accept mail for the domain > locally ~except~ when the mail originates from certain specific machines > - can this be done with sendmail? > > Thanks in advance for any help. It can be done be writing a few custom R lines. You can insert then in right place in sendmail.cf using LOCAL_RULE_0 -- [pl>en Andrew] Andrzej Adam Filip : anfi(a)onet.eu : Andrzej.Filip(a)gmail.com Open-Sendmail: http://open-sendmail.sourceforge.net/ Tomorrow's computers some time next month. -- DEC
From: Moby on 18 Feb 2010 11:46 On 02/18/2010 10:39 AM, Andrzej Adam Filip wrote: > Moby <moby(a)mobsternet.com> wrote: >> I have a weird requirement. Say I am the backup MX for a domain. If I >> get email from any machine for domain A, I want to deliver it as per my >> virtusertable rules (this part is working - I add the appropriate >> entires in my virtusertable and also add the domain name to my >> local-host-names). However, if people on specific hosts using my mail >> server send email to the domain, I want it sent out, as per MX lookup >> rules etc (assuming primary MX is up and running). How can I do this? >> >> The crux of the matter appear to be: >> 1) In order to be able to accept mail for the domain, I have to add it >> to my local-host-names. >> 2) Once added to my local-host-names, my server always accepts mail for >> the domain and does not do an MX lookup. >> >> I need to be able to have my sendmail server accept mail for the domain >> locally ~except~ when the mail originates from certain specific machines >> - can this be done with sendmail? >> >> Thanks in advance for any help. > > It can be done be writing a few custom R lines. > You can insert then in right place in sendmail.cf using LOCAL_RULE_0 > I was sure custom R lines could accomplish this, but I rather dread trying to cook up custom R lines for sendmail, hence my leaning towards firing up a second instance of sendmail and using the much much friendlier mailertable etc configuration route. I did get a hold of the Sendmail Cookbook, so I might decide to torture myself and try to come up with custom R lines to accomplish what I need. Thanks.
From: Andrzej Adam Filip on 18 Feb 2010 12:28 Moby <moby(a)mobsternet.com> wrote: > On 02/18/2010 10:39 AM, Andrzej Adam Filip wrote: >> Moby <moby(a)mobsternet.com> wrote: >>> I have a weird requirement. Say I am the backup MX for a domain. If I >>> get email from any machine for domain A, I want to deliver it as per my >>> virtusertable rules (this part is working - I add the appropriate >>> entires in my virtusertable and also add the domain name to my >>> local-host-names). However, if people on specific hosts using my mail >>> server send email to the domain, I want it sent out, as per MX lookup >>> rules etc (assuming primary MX is up and running). How can I do this? >>> >>> The crux of the matter appear to be: >>> 1) In order to be able to accept mail for the domain, I have to add it >>> to my local-host-names. >>> 2) Once added to my local-host-names, my server always accepts mail for >>> the domain and does not do an MX lookup. >>> >>> I need to be able to have my sendmail server accept mail for the domain >>> locally ~except~ when the mail originates from certain specific machines >>> - can this be done with sendmail? >>> >>> Thanks in advance for any help. >> >> It can be done be writing a few custom R lines. >> You can insert then in right place in sendmail.cf using LOCAL_RULE_0 >> > I was sure custom R lines could accomplish this, but I rather dread > trying to cook up custom R lines for sendmail, hence my leaning towards > firing up a second instance of sendmail and using the much much > friendlier mailertable etc configuration route. I did get a hold of the > Sendmail Cookbook, so I might decide to torture myself and try to come > up with custom R lines to accomplish what I need. > > Thanks. Take a look at FEATURE(`anfi/smarttable') at http://open-sendmail.sourceforge.net/ You can "twist it" to your needs by: a) using LOCAL_RULE_0 instead of LOCAL_NET_CONFIG b) using &{client_addr} instead of &$f -- [pl>en Andrew] Andrzej Adam Filip : anfi(a)onet.eu : Andrzej.Filip(a)gmail.com If a camel is a horse designed by a committee, then a consensus forecast is a camel's behind. -- Edgar R. Fiedler
From: Moby on 18 Feb 2010 14:45
>>> >>> It can be done be writing a few custom R lines. >>> You can insert then in right place in sendmail.cf using LOCAL_RULE_0 >>> >> I was sure custom R lines could accomplish this, but I rather dread >> trying to cook up custom R lines for sendmail, hence my leaning towards >> firing up a second instance of sendmail and using the much much >> friendlier mailertable etc configuration route. I did get a hold of the >> Sendmail Cookbook, so I might decide to torture myself and try to come >> up with custom R lines to accomplish what I need. >> >> Thanks. > > Take a look at FEATURE(`anfi/smarttable') at > http://open-sendmail.sourceforge.net/ > > You can "twist it" to your needs by: > a) using LOCAL_RULE_0 instead of LOCAL_NET_CONFIG > b) using &{client_addr} instead of &$f > Thanks - I shall do that. |