email message delayed and never gets delivered

Discussion in 'General' started by ariban99, Dec 22, 2021.

  1. ariban99

    ariban99 Member

    Hi

    I have one vendor who can never email me, he has to use his personal email. i have no idea why, all other emails seem to be coming in fine. here is his error message email that he gets when trying to email me:

    Delivery is delayed to these recipients or groups:

    [email protected] ([email protected]) <mailto:[email protected]>

    Subject: RE: FS Label Email

    This message hasn't been delivered yet. Delivery will continue to be attempted.

    The server will keep trying to deliver this message for the next 1 days, 19 hours and 59 minutes. You'll be notified if the message can't be delivered by

    that time.

    Diagnostic information for administrators:

    Generating server: TCI-Mail.TCIPRODUCTS.LOCAL

    Total retry attempts: 17

    [email protected]

    Server returned '400 4.4.7 Message delayed'

    Original message headers:

    Received: from TCI-Mail.TCIPRODUCTS.LOCAL (172.16.0.237) by

    TCI-Mail.TCIPRODUCTS.LOCAL (172.16.0.237) with Microsoft SMTP Server

    (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id

    15.2.922.13; Wed, 22 Dec 2021 06:58:22 -0600

    Received: from TCI-Mail.TCIPRODUCTS.LOCAL ([fe80::d8f5:7e6e:9567:a5c2]) by

    TCI-Mail.TCIPRODUCTS.LOCAL ([fe80::d8f5:7e6e:9567:a5c2%14]) with mapi id

    15.02.0922.013; Wed, 22 Dec 2021 06:58:22 -0600

    From: Jeff Collett <[email protected]>

    To: "[email protected]" <[email protected]>

    CC: Lois Loyd <[email protected]>

    Subject: RE: FS Label Email

    Thread-Topic: FS Label Email

    Thread-Index: AQHXxFY5zzZb6vRcx0mdFFxSHMWyAavZKF0AgAAAjJWAZZ22gIAAF5Ig

    Date: Wed, 22 Dec 2021 12:58:22 +0000

    Message-ID: <[email protected]>

    References: <[email protected]od.outlook.com>

    <[email protected]>

    <[email protected]od.outlook.com>

    <[email protected]>

    In-Reply-To: <[email protected]>

    Accept-Language: en-US

    Content-Language: en-US

    X-MS-Has-Attach: yes

    X-MS-TNEF-Correlator:

    x-originating-ip: [24.182.235.90]

    Content-Type: multipart/related;

    boundary="_004_992587999a9842c08b701938138130d6fslabelcom_";

    type="multipart/alternative"

    MIME-Version: 1.0


    Any help would greatly be appreciated

    THank you

    Ben
     
  2. Jesse Norell

    Jesse Norell ISPConfig Developer Staff Member ISPConfig Developer

    What shows up in your mail log when they try to email you?
     
  3. ariban99

    ariban99 Member

    Dec 22 10:14:59 webserver1 dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=98.150.186.46, lip=192.168.1.23, mpid=16347, TLS, session=<iiOzxsHTXCBilrou>

    Dec 22 10:14:59 webserver1 postfix/smtpd[16248]: connect from mail.tciproducts.com[75.58.191.237]

    Dec 22 10:15:00 webserver1 dovecot: imap([email protected])<16347><iiOzxsHTXCBilrou>: Connection closed (UID FETCH finished 0.442 secs ago) in=237 out=43241 deleted=0 expunged=0 trashed=0 hdr_count=1 hdr_bytes=903 body_count=1 body_bytes=41260

    Dec 22 10:15:00 webserver1 dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=98.150.186.46, lip=192.168.1.23, mpid=16349, TLS, session=<DMjCxsHTwklilrou>

    Dec 22 10:15:00 webserver1 dovecot: imap([email protected])<16349><DMjCxsHTwklilrou>: Connection closed (SEARCH finished 0.089 secs ago) in=67 out=821 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0

    Dec 22 10:15:00 webserver1 postfix/smtpd[16248]: NOQUEUE: reject: RCPT from mail.tciproducts.com[75.58.191.237]: 450 4.7.1 <TCI-Mail.TCIPRODUCTS.LOCAL>: Helo command rejected: Host not found; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<TCI-Mail.TCIPRODUCTS.LOCAL>

    Dec 22 10:15:00 webserver1 postfix/smtpd[16248]: disconnect from mail.tciproducts.com[75.58.191.237] ehlo=2 starttls=1 mail=1 rcpt=0/1 quit=1 commands=5/6

    Dec 22 10:15:01 webserver1 postfix/smtpd[16248]: connect from localhost[::1]

    Dec 22 10:15:01 webserver1 postfix/smtpd[16248]: lost connection after CONNECT from localhost[::1]

    Dec 22 10:15:01 webserver1 postfix/smtpd[16248]: disconnect from localhost[::1] commands=0/0

    Dec 22 10:15:01 webserver1 dovecot: pop3-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=::1, lip=::1, secured, session=<oFfbxsHTAt0AAAAAAAAAAAAAAAAAAAAB>

    Dec 22 10:15:01 webserver1 dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=::1, lip=::1, secured, session=<3VvbxsHTqt0AAAAAAAAAAAAAAAAAAAAB>

    Dec 22 10:15:12 webserver1 postfix/smtps/smtpd[12071]: connect from unknown[212.70.149.72]

    Dec 22 10:15:36 webserver1 postfix/smtps/smtpd[10127]: connect from unknown[212.70.149.72]

    Dec 22 10:15:47 webserver1 postfix/smtps/smtpd[12071]: warning: unknown[212.70.149.72]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

    Dec 22 10:15:51 webserver1 postfix/smtps/smtpd[12071]: lost connection after AUTH from unknown[212.70.149.72]

    Dec 22 10:15:51 webserver1 postfix/smtps/smtpd[12071]: disconnect from unknown[212.70.149.72] ehlo=1 auth=0/1 rset=1 commands=2/3

    Dec 22 10:16:11 webserver1 postfix/smtps/smtpd[10127]: warning: unknown[212.70.149.72]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

    Dec 22 10:16:15 webserver1 postfix/smtps/smtpd[10127]: lost connection after AUTH from unknown[212.70.149.72]

    Dec 22 10:16:15 webserver1 postfix/smtps/smtpd[10127]: disconnect from unknown[212.70.149.72] ehlo=1 auth=0/1 rset=1 commands=2/3

    Dec 22 10:16:33 webserver1 postfix/smtps/smtpd[12071]: connect from unknown[212.70.149.72]

    Dec 22 10:16:57 webserver1 postfix/smtps/smtpd[10127]: connect from unknown[212.70.149.72]

    Dec 22 10:17:08 webserver1 postfix/smtps/smtpd[12071]: warning: unknown[212.70.149.72]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

    Dec 22 10:17:12 webserver1 postfix/smtps/smtpd[12071]: lost connection after AUTH from unknown[212.70.149.72]

    Dec 22 10:17:12 webserver1 postfix/smtps/smtpd[12071]: disconnect from unknown[212.70.149.72] ehlo=1 auth=0/1 rset=1 commands=2/3

    Dec 22 10:17:22 webserver1 dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=::1, lip=::1, mpid=16531, secured, session=<Xr41z8HT7N0AAAAAAAAAAAAAAAAAAAAB>

    Dec 22 10:17:22 webserver1 dovecot:
     
  4. Th0m

    Th0m ISPConfig Developer Staff Member ISPConfig Developer

    Code:
    Dec 22 10:15:00 webserver1 postfix/smtpd[16248]: NOQUEUE: reject: RCPT from mail.tciproducts.com[75.58.191.237]: 450 4.7.1 <TCI-Mail.TCIPRODUCTS.LOCAL>: Helo command rejected: Host not found; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<TCI-Mail.TCIPRODUCTS.LOCAL>
    This is the issue, they have a problem in their configuration so it sends out a incorrect HELO.

    Also, please put such output in code tags in the future.
     
    Jesse Norell likes this.
  5. Jesse Norell

    Jesse Norell ISPConfig Developer Staff Member ISPConfig Developer

    In recent ISPConfig versions there is a 'Reject unknown hostnames' setting in Server Config that controls if unknown hostnames are rejected or not. On a semi-related note, I explicitly block all hostnames identifying as the .local domain, so even without unknown hostname restrictions, that would get blocked on most (all?) servers here.
     
  6. ariban99

    ariban99 Member

    Thank you for this, i will let them know its their issue, not mine.
    i will put this in tags in future. thank you for pointing that out.
     
    Th0m likes this.

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