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By the way,I am using Sendmail as my mail server.I use it and relay mail to my ISP mail server. (Because my ISP has blocked port 25) However,here's the problem.I can send e-mail to hotmail but others fail. I have consulted my ISP customer service but they don't know the answer.(The truth is that they are not willing to help)So,my problem is:
1.How comes my mail can only send to hotmail?
2.Is that ISP or my mail server fault?
3.I have used my ISP as my relay mail server on WINDOWS.It goes well,too.However,why can't I do it the same way on Linux?
Any suggestions or comments are appreciative!
Last edited by Swift&Smart; 10-28-2003 at 04:30 AM.
if you are trying to relay mail through your ISP then it is highly possible that it is being blocked because you ISP probably wouldnt want to be running an open mail proxy. Open mail proxies are bad, used by spammers to send spam. Any ISP will not want this. Your ISP would probably have to config their email servers to allow forwarding from your IP address.
Oh, if you called Customer support, they probably had no clue what u were talking about. I still dont understand why companies that run technical services let people with no technical background or training answer the phone. I guess it's because questions like yours are the exception and not the norm.
i just saw where u said it worked in windows. hmmmmm. Maybe your ISP does allow relaying from it's clients i guess. Do you have the configuration section where you tell sendmail to use your ISP as a relay?
Last edited by Robert0380; 10-28-2003 at 01:16 PM.
Indeed,I have added RS mail.myisp.com in my sendmail configuration file.I am wondering why I can only send mail to hotmail but not others. On the other hand,as I have said,I can do it on Windows..... another
Anyway,thanks for your swift reply and every effort to help me out.
P.S.I am working in one of the ISP right now,as I heard from the customer support staff's conversation with customer,they are not really professional.Their answer can't really help to solve their problem.Their answer like "MODEL ANSWER".
I think your message should be in a separate thread.
You probably receive the error message during system startup, and the message means that your system tried to start a service but the service crashed. It will try to start it again after 5 minutes (and will probably fail again).
The last time I got this message was when I replaced motherboard and CPU in my machine. For me, all services at runlevel 5 failed, which meant that the hardware change completely messed up my system. I could only get rid of the message after re-installing Linux. Maybe there are more sophisticated solutions, too, but I do not know them.
First off,J_Szucs,I have added DSsmtp.your.isp in my sendmail.cf file.Let's get back to my problem.I can send mail to hotmail but others fail.If DSsmtp.your.isp is the root of the problem,I think that the mail cannot be sent out if this configuration left out.Anyway,I think this problem is pretty hard to figure out.
Do you have a real, own domain name? Many (I might say most if not all) of the mail servers only accept mail from existing domains (hosts) and they also check if the sender's domain name resolves correctly.
From the maillog entry you posted here I suspect that you do not have a real domain name (at least mylinux does not seem so).
So, is your mail address:
a) email@example.com, or
If case b) applies, then you can only send mail if you tell sendmail to masquerade all mails as if sent by domain yourispsdomain.foo. I think you should use sendmail's features 'allmasquerade' and 'masquerade envelope'.
If case a) applies (ie you have your own domain name), does it resolve from anywhere on the internet?.
Anyway, I have never seen an ISP that does not send you a note when delivery of a mail fails.
You really make things clear on my problem.First off,I think that I have some configuration problem on my linux server.I use something like firstname.lastname@example.org as my computer name.I think it causes the problem...
After I changed Start here->System setting->Network->hosts tab to my domain name myname.no-ip.com,it works!!!!!!!!!!!!!!!!!.However,I have an extra question.If my IP address is dynamic,what should I type in the IP textfield????
Thanks a lot,J_Szucs.
Last edited by Swift&Smart; 10-30-2003 at 09:30 PM.