Service not available

Having trouble emailing a domain. When trying to email any address on
this domain, I get the following back in my gwia logs.

15:03:12 116C MSG 4263532 Analyzing result file:
/media/nss/DATA/campgwia/wpgate/gwia/result/r6659f65.322
15:03:12 116C MSG 4263532 Detected error on SMTP command
15:03:12 116C MSG 4263532 Command: RCPT TO:<email_address>
15:03:12 116C MSG 4263532 Response: 421 Service not available, closing
transmission channel

If I try telnetting to either of their mail servers on port 25 from my
gwia, I get this:

ccg-gwia:~ # telnet mailserver_IP 25
Trying mailserver_IP...
Connected to mailserver_IP.
Escape character is '^]'.
220 mailserver.domain.com ESMTP Mail Gateway

Of course they say it's on our end, and we *can* email other external
domains, just not this one.

Any suggestions?

--
Stevo

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Parents
  • Am 07.12.2015 um 23:11 schrieb Stevo:
    > Having trouble emailing a domain. When trying to email any address on
    > this domain, I get the following back in my gwia logs.
    >
    > 15:03:12 116C MSG 4263532 Analyzing result file:
    > /media/nss/DATA/campgwia/wpgate/gwia/result/r6659f65.322
    > 15:03:12 116C MSG 4263532 Detected error on SMTP command
    > 15:03:12 116C MSG 4263532 Command: RCPT TO:<email_address>
    > 15:03:12 116C MSG 4263532 Response: 421 Service not available, closing
    > transmission channel
    >
    > If I try telnetting to either of their mail servers on port 25 from my
    > gwia, I get this:
    >
    > ccg-gwia:~ # telnet mailserver_IP 25
    > Trying mailserver_IP...
    > Connected to mailserver_IP.
    > Escape character is '^]'.
    > 220 mailserver.domain.com ESMTP Mail Gateway
    >
    > Of course they say it's on our end, and we *can* email other external
    > domains, just not this one.
    >
    > Any suggestions?
    >


    At any rate, *they* don't like something about "you", what exactly that
    is is usually their business to know and tell you, but we all know how
    this goes in this industry...

    Do you by chance have DSN (delivery status notification) enabled? There
    are recently some cases of external email systems that bark on that.
    Maybe try without it.

    CU,
    --
    Massimo Rosen
    Novell Knowledge Partner
    No emails please!
    http://www.cfc-it.de
Reply
  • Am 07.12.2015 um 23:11 schrieb Stevo:
    > Having trouble emailing a domain. When trying to email any address on
    > this domain, I get the following back in my gwia logs.
    >
    > 15:03:12 116C MSG 4263532 Analyzing result file:
    > /media/nss/DATA/campgwia/wpgate/gwia/result/r6659f65.322
    > 15:03:12 116C MSG 4263532 Detected error on SMTP command
    > 15:03:12 116C MSG 4263532 Command: RCPT TO:<email_address>
    > 15:03:12 116C MSG 4263532 Response: 421 Service not available, closing
    > transmission channel
    >
    > If I try telnetting to either of their mail servers on port 25 from my
    > gwia, I get this:
    >
    > ccg-gwia:~ # telnet mailserver_IP 25
    > Trying mailserver_IP...
    > Connected to mailserver_IP.
    > Escape character is '^]'.
    > 220 mailserver.domain.com ESMTP Mail Gateway
    >
    > Of course they say it's on our end, and we *can* email other external
    > domains, just not this one.
    >
    > Any suggestions?
    >


    At any rate, *they* don't like something about "you", what exactly that
    is is usually their business to know and tell you, but we all know how
    this goes in this industry...

    Do you by chance have DSN (delivery status notification) enabled? There
    are recently some cases of external email systems that bark on that.
    Maybe try without it.

    CU,
    --
    Massimo Rosen
    Novell Knowledge Partner
    No emails please!
    http://www.cfc-it.de
Children
  • Massimo Rosen sounds like they 'said':

    > Do you by chance have DSN (delivery status notification) enabled?
    > There are recently some cases of external email systems that bark on
    > that. Maybe try without it.
    >
    > CU,


    So my response to Massimo's comment is...

    That didn't seem to help. I did contact someone from their IT dept and
    forwarded him the undeliverable response I got back, guess I'll see
    what that reveals.

    --
    Stevo