sendmail error

[Michael Schulte zur Sur]

Hi,

does anyone know the cause of this?
Jan 10 18:00:01 fri10d sendmail[212025]: j0AH01D211850: SYSERR(root): getmxrr: r
es_search (dhl.com) failed with impossible h_errno (0)

os 5.1b pk3

thanks,

Michael

[Ralf Puchner]

The version doesn't say anything about the used sendmail version... ;-)

I've seen the h_errno (0) error message if using a selfcompiled sendmail version which isn't threadsafe.

The given errormessage indicates a problem in resolving the mailserver for domain dhl.com. So check dns setup.

[Michael Schulte zur Sur]

Ralf,

thanks for answering.Version is 8.11.1, original os version. dns is not used. resolution is by hosts.
seen following additional message.

Michael

Jan 11 13:20:01 fri10d sendmail[306634]: j0BCK1m306684: SYSERR(root): getmxrr: r
es_search (dhl.com) failed with impossible h_errno (0)
Jan 11 13:20:01 fri10d sendmail[306634]: j0BCK1m306684: to=xxxxx.xxxxxx@dhl.com,
xxxxxx.xxxxxxx@dhl.com,xxxxxx.xxxxxxxxxx@dhl.com, ctladdr=root (0/1), delay=00:
00:00, xdelay=00:00:00, mailer=smtp, pri=192163, relay=dhl.com, dsn=4.0.0, stat=
Operating system error

[Ralf Puchner]

yes but the mx record is necessary to detect mailserver, have a look to the function getmxrr() which do the job.

So how should that work using /etc/hosts?

Btw. thank for delivering some spam addresses - think about it ;-)

[Michael Schulte zur Sur]

Ralf,

it is strange that another machine in that subnet with the same os/pk works without dns.

Michael

[Michael Schulte zur Sur]

Hi,

attached a sendmail output.

thanks,

Michael

[Michael Schulte zur Sur]

Ralf,

it seems you were right after all with the dns hint. So if you want the points, leave another post!

thanks,

Michael

[Ralf Puchner · Accepted solution]

Michael,

sometimes it is important to interpret error messages and getmxrr() was the indication that some dns issues are involved here ;-)

[Michael Schulte zur Sur]

Ralf,

thanks for your time.
I have looked for a manual page and also with google but I would not have linked getmxrr to dns. How do you know that?

thanks,

Michael

[Ralf Puchner]

Michael,

sendmail logs contains always the function call failed. So in your case getmxrr. If you know that bind contains setup informations e.g. mx-host which is required for mail delivery it is as simple as adding numbers to get the right direction.

Btw. if you have ever used man-pages or done any troubleshooting you should know how function names are built on unix systems