Send Mail auth problem

Bilb · 08-01-2005, 08:31 AM

I have been looking at this for a couple of days now without any luck. All other posts I've seen on here and elsewhere havent fully helped.

The problem is I can not send an email from my linux server through the mail server. I can do this from telnet to the mail server from the linux server but not through sendmail.

The errors I get is:

Code:

Aug  1 14:11:01 csak2 sendmail[22860]: j71DB0QU022860: from=root, size=46, class=0, nrcpts=1, msgid=<200508011311.j71DB0QU022860@csak2.XX.co.uk>, relay=root@localhost
Aug  1 14:11:01 csak2 sendmail[22860]: j71DB0QU022860: to=kec@XX.co.uk, ctladdr=root (0/0), delay=00:00:01, xdelay=00:00:00, mailer=relay, pri=30046, relay=inty.XX.co.uk. [10.0.0.1], dsn=5.7.1, stat=User unknown
Aug  1 14:11:01 csak2 sendmail[22860]: j71DB0QU022860: j71DB0QV022860: DSN: User unknown
Aug  1 14:11:02 csak2 sendmail[22862]: j71DB2VC022862: from=<>, size=2195, class=0, nrcpts=1, msgid=<200508011311.j71DB0QV022860@csak2.XX.co.uk>, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1]
Aug  1 14:11:02 csak2 sendmail[22860]: j71DB0QV022860: to=root, delay=00:00:01, xdelay=00:00:00, mailer=relay, pri=31070, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (j71DB2VC022862 Message accepted for delivery)
Aug  1 14:11:02 csak2 sendmail[22863]: j71DB2VC022862: to=<root@csak2.XX.co.uk>, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=32429, dsn=2.0.0, stat=Sent

I currently has my sendmail.cf setup with:
# authinfo list database: contains info for authentication as client
Kauthinfo hash /etc/mail/auth/client-info

so it has the details to login to the mail server to send mail outside the network.

The bounced email also shows this:
----- The following addresses had permanent fatal errors -----
kec@XX.co.uk
(reason: 550 5.7.1 <kec@XX.co.uk>... Relaying denied. IP name lookup failed [10.0.0.23])

Has anyone got any ideas that may help me get this to work?

Pete M · 08-02-2005, 05:55 PM

Bilb

Do you control the outgoing mail server ?

Is it a Sendmail server ?

Pete

Bilb · 08-03-2005, 09:51 AM

Hi Pete,

No, as the server is on a corp. customer site. I can get settings changed on the outgoing mail server and we have setup an account on the mail server for this box to use.

The mail server is an Inty server (exoserver)

Pete M · 08-03-2005, 01:29 PM

Bilb

Let me start by saying that I am no Sendmail guru particularly in the corporate world

But I can share with you my observations and see if it helps

From the section of mail logs you've posted it appears that sendmail is rejecting the mail before it attemps to connect to the outgoing mail server

Code:

relay=inty.XX.co.uk. [10.0.0.1], dsn=5.7.1, stat=User unknown

I assume that "inty.XX.co.uk." is the machine that the mail originates from

In /etc/mail/access add

Code:

XX.co.uk     RELAY

This will accept any host in the XX.co.uk domain

Or to be more restictive you can add just

Code:

inty.XX.co.uk     RELAY

This will only accept inty.XX.co.uk and no other host in the XX.co.uk domain

Instead of domain names you can use IP addresses with the same result

You will then have to create "access.db" how you do this depends on your distribution

Restart sendmail

This should at least allow the mail to be pasted through sendmail to the outgoing server

If all of this is way off mark please feel free to ignore it

Pete

hlslaughter · 08-03-2005, 04:25 PM

most smtp servers won't accept mail from end-user type boxes, since that's how a lot of spammers send email. it has to come from a 'legit' source, like an isp.

try setting this in /etc/mail/sendmail.cf

Code:

# "Smart" relay host (may be null)
DSyourmailhost.yourisphere.com

Bilb · 08-04-2005, 03:45 AM

Hi Pete,

Code:

Let me start by saying that I am no Sendmail guru particularly in the corporate world

Thank you for your help anyway tho.

I do already have the network range in access file (10.0.0.0/24) I have added inty.XX.co.uk as well and rebuilt access.db but I still have the same error

hlslaughter,
What I am trying to do is send mail through a mail server which requires auth login

The mail server can send mail fine if I telnet into it and write the mail.

Bilb · 08-08-2005, 07:23 AM

no one got any idea's on this problem?

Pete M · 08-08-2005, 11:53 AM

Bilb

What version of Sendmail are you using ?

As of version 8.12 Authinfo is built into sendmail.cf, adding a statement to sendmail.mc overrides the default configuration

If your version is 8.12 or above try this

Remove the "Authinfo" statement from sendmail.mc, you can do this with "dnl+space" like this

Code:

dnl FEATURE(`authinfo',`hash /etc/mail/auth/client-info')dnl

Edit /etc/mail/access add to it

Code:

AuthInfo:domain.com "U:smmsp" "I:user" "P:password"

Don'nt know if you got a smiley but it's P

assword
Damn smiley ":" between P and password

Replace "domain.com" with the domain name of the server you are trying to relay through, probably "smtp.domain.com" or whatever

Leave "U:smmsp" as is

Replace "user" and "password" with your own

Make /etc/mail/access.db

Make /etc/mail/sendmail.cf

Restart sendmail

Worked here, both methods are listed

http://www.linuxquestions.org/questi...hreadid=349947

Pete

Bilb · 08-09-2005, 03:16 AM

Thx Pete, i'll go thro as u said up there and see what happens.

Im using sendmail 8.12.11 btw

Also in the "AuthInfo:domain.com "U:smmsp" "I:user" "Password"" do you put the username & password in using base64 or just in plain text?

Pete M · 08-09-2005, 07:37 AM

Bilb

Quote:

do you put the username & password in using base64 or just in plain text?

Plain text then create access.db

Tried this on 2 mail servers on my LAN and also relaying through my ISP

Pete

Bilb · 08-10-2005, 08:01 AM

ok, it does seem to work but no mail has been received

Im guessing it is something on the inty server now, i'll wait for the bounce email to get back and see what it says.

I did also try this on a box on 1 of our networks. This worked fine 1st time using the above, lol

Thanks again for your help.

/me awaits bounced email