locked
undelivered mail with #5.7.1 smtp;554 5.7.1 message

    Question

  • Hi there,

    Our exchange server 2003 rejected one of my email. The NDR is:

    The following recipient(s) could not be reached:
    My client email address on 2/19/2010 10:22 AM
    You do not have permission to send to this recipient. For assistance, contact your system administrator.
    <my_domain.com #5.7.1 smtp;554 5.7.1 <the mail server IP>: Client host rejected: The sender's mail server is blocked>

    This problem happened with the client domain only, other mails, such as hotmail, yahoo, are working.
    I have checked the configuration of the mail server, every thing is default. Please help me fix the problem.


    Leo
    Sunday, February 21, 2010 8:41 PM

Answers

  • Right here is where you got dropped:

    98.129.185.3 OutboundConnectionCommand SMTPSVC1 JLBSERVER - 25 RCPT - TO:<daunine@legrandmarketing.com> 0 0 4 0 359 SMTP - - - -
    98.129.185.3 OutboundConnectionResponse SMTPSVC1 JLBSERVER - 25 - - 554+5.7.1+<adsl-67-116-176-230.dsl.lsan03.pacbell.net[67.116.176.230]>:+Client+host+rejected:+The+sender's+mail+server+is+blocked 0 0 129 0 828 SMTP - - - -

    Send that log entry to the recipient domain's email admin and ask them why they're refusing that email.
    • Marked as answer by Leomu8 Thursday, February 25, 2010 6:32 AM
    Tuesday, February 23, 2010 6:30 PM
  • I agree with mjolinor, you need to contact the mail admin of recipient domain, and ask them the reject reason.
    • Marked as answer by Leomu8 Thursday, February 25, 2010 7:10 AM
    Wednesday, February 24, 2010 3:30 AM

All replies

  • You'll need to contact the admins at the recipient's domain.  It sounds like your server is on an RBL.
    Sunday, February 21, 2010 8:45 PM
  • Hi mjolinor,

    Thanks for the reply.

    May I know what RBL stands for?

    Before posting my question here, I contacted the admins at the recipient's domain. They did not block our mail server, and our server is not on any blacklist.

    They thought the problem might be happened on the routes, and asked me to run a trace against the mails. It could help me find out which server on the routes blocks the mail.

    Do you know how to run a mail trace?


    Leo  
    Monday, February 22, 2010 6:53 AM
  • "Remote Block List", or "Remote Blackhole List", - essentially a list of known or probably spam sources being maintained by someone else.

    Monday, February 22, 2010 11:17 AM
  • From your original post:

    You do not have permission to send to this recipient. For assistance, contact your system administrator.
    <my_domain.com #5.7.1 smtp;554 5.7.1 <the mail server IP>: Client host rejected: The sender's mail server is blocked>

    I may have misunderstood your symptoms. If <the mail server> is your server, then the problem is on your end.  If it's the recipient's mail server it's being blocked on their end.

    Enable smtp protocol logging, and try it again.  There will be more information in the smtp logs about the error.

    Monday, February 22, 2010 11:24 AM
  • <the mail server> is our server.

    Here is the smtp log I got.

    The IP is assigned to mx1.emailsrve.com, which is the recipient's mail server. A "Blacklist Check" is implemented on the server. Should I work on the "Blacklist"?

    <-----------SMTP LOG START HERE-------------------->
    #Software: Microsoft Internet Information Services 6.0
    #Version: 1.0
    #Date: 2010-02-22 21:21:25
    #Fields: time c-ip cs-method cs-uri-stem sc-status
    21:21:30 98.129.185.3 - - 0
    21:21:30 98.129.185.3 EHLO - 0
    21:21:30 98.129.185.3 - - 0
    21:21:30 98.129.185.3 MAIL - 0
    21:21:30 98.129.185.3 - - 0
    21:21:30 98.129.185.3 RCPT - 0
    21:21:31 98.129.185.3 - - 0
    21:21:31 98.129.185.3 RSET - 0
    21:21:31 98.129.185.3 - - 0
    21:21:31 98.129.185.3 QUIT - 0
    21:21:31 98.129.185.3 - - 0
    <------------END------------------>
    Monday, February 22, 2010 9:43 PM
  • Increase your logging level. 
    Tuesday, February 23, 2010 3:02 PM
  • You need to increse your logging level to get more detail, and just post the events for the emails that failed delivery.
    Tuesday, February 23, 2010 5:10 PM
  • Thanks for helping me. here is the high level logging I just got.

    98.129.185.3 OutboundConnectionResponse SMTPSVC1 JLBSERVER - 25 - - 220+mx1.emailsrvr.com+ESMTP+-+(gate27.gate.dfw.mlsrvr.com)+VA+Code+Section+18.2-152.3:1+forbids+sending+spam+through+this+system 0 0 128 0 141 SMTP - - - -
    98.129.185.3 OutboundConnectionCommand SMTPSVC1 JLBSERVER - 25 EHLO - jessielordbakery.com 0 0 4 0 141 SMTP - - - -
    98.129.185.3 OutboundConnectionResponse SMTPSVC1 JLBSERVER - 25 - - 250-gate27.gate.dfw.mlsrvr.com 0 0 30 0 188 SMTP - - - -
    98.129.185.3 OutboundConnectionCommand SMTPSVC1 JLBSERVER - 25 MAIL - FROM:<Administrator@jessielordbakery.com>+SIZE=1705 0 0 4 0 188 SMTP - - - -
    98.129.185.3 OutboundConnectionResponse SMTPSVC1 JLBSERVER - 25 - - 250+2.1.0+Ok 0 0 12 0 359 SMTP - - - -
    98.129.185.3 OutboundConnectionCommand SMTPSVC1 JLBSERVER - 25 RCPT - TO:<daunine@legrandmarketing.com> 0 0 4 0 359 SMTP - - - -
    98.129.185.3 OutboundConnectionResponse SMTPSVC1 JLBSERVER - 25 - - 554+5.7.1+<adsl-67-116-176-230.dsl.lsan03.pacbell.net[67.116.176.230]>:+Client+host+rejected:+The+sender's+mail+server+is+blocked 0 0 129 0 828 SMTP - - - -
    98.129.185.3 OutboundConnectionCommand SMTPSVC1 JLBSERVER - 25 RSET - - 0 0 4 0 828 SMTP - - - -
    98.129.185.3 OutboundConnectionResponse SMTPSVC1 JLBSERVER - 25 - - 250+2.0.0+Ok 0 0 12 0 875 SMTP - - - -
    98.129.185.3 OutboundConnectionCommand SMTPSVC1 JLBSERVER - 25 QUIT - - 0 0 4 0 891 SMTP - - - -
    98.129.185.3 OutboundConnectionResponse SMTPSVC1 JLBSERVER - 25 - - 221+2.0.0+Bye 0 0 13 0 922 SMTP - - - -
    Tuesday, February 23, 2010 6:15 PM
  • Right here is where you got dropped:

    98.129.185.3 OutboundConnectionCommand SMTPSVC1 JLBSERVER - 25 RCPT - TO:<daunine@legrandmarketing.com> 0 0 4 0 359 SMTP - - - -
    98.129.185.3 OutboundConnectionResponse SMTPSVC1 JLBSERVER - 25 - - 554+5.7.1+<adsl-67-116-176-230.dsl.lsan03.pacbell.net[67.116.176.230]>:+Client+host+rejected:+The+sender's+mail+server+is+blocked 0 0 129 0 828 SMTP - - - -

    Send that log entry to the recipient domain's email admin and ask them why they're refusing that email.
    • Marked as answer by Leomu8 Thursday, February 25, 2010 6:32 AM
    Tuesday, February 23, 2010 6:30 PM
  • I agree with mjolinor, you need to contact the mail admin of recipient domain, and ask them the reject reason.
    • Marked as answer by Leomu8 Thursday, February 25, 2010 7:10 AM
    Wednesday, February 24, 2010 3:30 AM
  • Hi mjolinor and Elvis Wei,

    They block sender's mail server if it failed to provide a valid reverse DNS record. Although our server has a reverse DNS record, it is too long, they don't like this knid of record.

    Information Technology serves business, the two companies have to do business through email. They manually unblocked our server today, and the two companies get reconnected.

    I am going to call AT&T, our ISP, to request changing the reverse DNS record for our server.   

    Thank you very much for helping me fix the problem.
     
    Thursday, February 25, 2010 7:06 AM