Hi all,

my sendmail able to send to yahoo mail. But not work the other way. Here the error message from yahoo mail box when I send to my sendmail. My domain is bloodhound.vnclassified.com. My dns ok, my MX record is ok too.

Please note: can not send to user@hostname.bloodhound.vnclassified.com

Here the message from yahoo mail

Message from yahoo.com.
Unable to deliver message to the following address(es).

<root@bloodhound.vnclassified.com>:
207.45.41.182 does not like recipient.
Remote host said: 550 5.7.1 <root@bloodhound.vnclassified.com>...
Relaying denied
Giving up on 207.45.41.182.

thanks.

When you send an email is that how it looks in the sender field:


user@hostname.bloodhound.vnclassified.com

with the hostname bit?

If so you probably tell sendmail that it's working for bloodhound.vnclassified.com rather than hostname.bloodhound.vnclassified.com

There's a line in sendmail.cf like

#my official domain name
#define only if sendmail cannot automatically determin your domain
#Dj$w.Foo.COM

change it too (your meant to use the sendmail.mc process but...)

Djbloodhound.vnclassified.com


where bloodhound.vnclassifed.com is what your dns is set up for restart sendmail

May help if this is the problem

I send with both sender user@domain.com or user@hostname.domain.com.
Both give me the error message that I post in above.

When I get mail bound back. It alway refer to user@hostname.domain.com

Also when I send mail to yahoo. The From field is user@hostname.domain.com. Which I want it like user@domain.com

I did not tell sendmail about my domain yet. I will try out your suggestion and hopefully it will solve the problem.

I will let you know. Thanks

it will send it and we can get it when we email to hostname.subdomain.vnclassified.com but not when we send it to subdomain.vnclassified.com
do we need to be able to ping subdomain.vnclassified.com for it to work if so where do we put that in in the config

we tried every thing but didnt get it to work ... finally i thougth... i cant send someone something without an address so in the bind-conf i put in the address for the domain which is OPTIONAL and now i can recieve mail from yahoo... i can ping lamb.vnclassified.com within the lamb subdomain but not from ns1.vnclassified.com ns1 being the name server for vnclass.... also i cant ping from above vnclassified....ie diff domain how can i set the address for vnclassified.com on the name server which is a windows box if ne one knows....

When I was using sendmail I used a DNS forwarding service, pointed the MX record to
smtp.mydomaim.com which resolved to the ip address of the machine that was hosting sendmail (just an example) I could then ping and telnet into that server from anywhere on the internet.

I had the adding hostname.smtp.mydomain.com problem and resolved it using the method
I stated up above.


Whatever you are calling your mail server the name should resolve one way or the other to an ip address whether that be a public ip address on a machine connected directly to the internet or the address of another machine/router forwarding to it.