On Mon, 17 Jun 2002, Adam Henry wrote:
> 2002-06-17 08:50:47 17Jvy2-0002iB-00 rejected from
> idk.carlsoncraft.com (tcmail2.tcusa.com) [198.12.16.12]: temporarily
> unable to verify sender address <Service@???> (try later)
> sender_verify_hosts_callback = *
> sender_verify_callback_domains = *
> sender_verify_hosts = *
> sender_verify = true
> headers_checks_fail = true
>
> What I am investigating into is which of these options prevents the
> above mail from being accepted. I also would like to know if anything
sender_verify
it gave back a temporary error to the other party, as it wasn not able
to verify it at present. the other party is supposed to try to re-send
the mail at a later date. fyi, i suppose the exact cause is this:
$ telnet imail.tcmkt.net smtp
Trying 198.12.17.12...
Connected to imail.tcmkt.net.
Escape character is '^]'.
220 X1 NT-ESMTP Server imail.tcmkt.net (IMail 5.05 109886-1)
ehlo dusk
250-imail.tcmkt.net says hello
250-SIZE 0
250-8BITMIME
250-DSN
250-ETRN
250 EXPN
mail from:<>
501 bogus mail from
quit
221 Goodbye
so they don't accept empty senders. tell them they should get an
educated mail admin instead of who they have at present.
look at sender_try_verify if you want to loosen the restriction
somewhat.
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