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Hai,
I'm using Redhat Linux Sendmail 8.12.8 and by default is is not allowing relay. I want to enable this relay so that my off Campus mail users can send mail to mail users of all other domains(like user@yahoo.com,users@rediffmail.com..) so please help me achieve it.
thanks in advance.
V.Murali tharan
Hi Murali,
In /etc/mail/access or relay(not sure) file add the server ipaddress and hostname instead of logical address. This should solve ur problem.
Pl take backup before changing the config file.
Regards,
Balakrishna
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Hi Bala,
Thanks for your rely. in this case i have to add each ever mail domain IP address and hostname and is very difficult to identify that to which ID my users will send mails. If at all i want to enable relay for all the domain, then what should i do bala.....
thanks in advance.... Murali
Thanks and regards
V.Murali tharan
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How are your clients connecting? Do they have static IPs? If so add their IPs/domains to /etc/mail/access, eg:
192.168.0 RELAY
smtp.mailserver.com RELAY
212.226.45.18 RELAY
jon.home.domain RELAYIf they are using dynamic IPs (eg on dial-up) then you will have to look into authentication instead.
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Hai 3Dave,
Much thanks for your reply. My clients are using Dial-up Connection and they would get Dynamic IPs. can u please tell me how to set authentication method as u have described. Send me the full write on authentication part.
Thanks and regards
V.Murali tharan
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as root:
Add a line(s) like below to your access file.
Access file is at /etc/mail/access (usually).somedomain.something RELAY
ip.add.re.ss RELAYsomedomain.something = the domain you wish to allow
ip.add.re.ss = an actual ip address
use the tab key for the space between address and RELAY.
Then run the below command:
makemap hash access.db < accessRestart sendmail and you are off to the RELAY races.
I would, however, read the link posted above by "3Dave". There are better authentication options available. Very informative, too...right from the sendmail folks, as well.
I'm not as dumb as I am.
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I mentioned /etc/mail/access above but I don't think it will help him as the clients are using dial-up and dynamic IPs/naming.
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It is possible to add an entire domain to the access file. You can also use partial IPS w/wild cards.
EX:
proivder.com RELAY
123.42 RELAYThen everyone from provider.com and/or with an ip address starting with 123.42 can relay mail through your server.
It works, but is not a good idea (in my opinion) for security reasons.
I'm not as dumb as I am.
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