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Sendmail and Exchange

Posted on 2000-04-09
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Last Modified: 2010-04-21
I am trying to configure sendmail to forward to exchange. I have Exchange inside the firewall and sendmail outside the firewall. The exchange server is already in the DNS. Please let me know how I should configure sendmail the best way possible while being security conscience. Thanks
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Question by:ruiz00
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by:ruiz00
ID: 2698954
Adjusted points from 30 to 40
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by:ruiz00
ID: 2698980
Adjusted points from 40 to 200
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by:ruiz00
ID: 2699042
Adjusted points from 200 to 300
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tel2 earned 300 total points
ID: 2699778
Try this ruiz,

I'm not sure how to get "Exchange to sendmail" working, but this might work for "sendmail to Exchange" working:

Edit the /etc/sendmail.cf file (eg: with vi), and if you find a line which contains just the word:
  DRRelayHostName
Change it to:
  DR123.456.789.012   (or whatever you firewall IP address is, or FAILING THAT, try your Exchange server's IP address)

If not, look for:
  DSmailer:relayhostname
and change it to:
  DSSMTP:123.456.789.012

If not, I give up.  But if one of the above was found and replaced:

Then from the UNIX prompt, activate your change with:
  refresh -s sendmail
and hopefully you will be able to Email Exchange and the Internet if you're set up.  Your messages to Exchange will probably have to use external (ie: Internet) style addressing (eg: me@mywork.com).

Can test verbose send like:
echo "Test Body" | mail -v -s "Test Subject" me@my_work.com

I'm not sure about security...sorry.

If that doesn't work, tell us what type of UNIX you're running, and if possible, what version of /etc/sendmail.cf you've got.  I probably won't be able to help though.
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Author Comment

by:ruiz00
ID: 2705431
Hey man, didn't work, but you can have the points anyway.

Thanks
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LVL 12

Expert Comment

by:tel2
ID: 2706450
Sounds like a good deal - thanks!

Have you got it working?
If so, what did you have to do?
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