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Configuration for sending emails

Discussion in 'E-mail Discussion' started by Ovivo, Nov 6, 2017.

  1. Ovivo

    Ovivo Member

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    I have 2 servers from where emails are sent.
    Since a few weeks, from one of the servers we can not send and gives us the following error:

    Code:
    Connecting to: server1
    
    220-server1 ESMTP Exim 4.89 # 1 Sun, 05 Nov 2017 22:14:35 -0300
    220-We do not authorize the use of this system to transport unsolicited,
    220 and / or bulk e-mail.
    Connection established
    250-server1 Hello pc-xxx-xxx-120-200.cm.vtr.net [200.120.xxx.xxx]
    250-SIZE 52428800
    250-8BITMIME
    250-PIPELINING
    250-STARTTLS
    250 HELP
    503 AUTH command used when not advertised
    Can not Send Message (s): Authentication failed - wrong Username, Password or AUTH method
    
    Using the same shipment on the other server

    Code:
    Connecting to: server2
    
    220-server2 ESMTP Exim 4.87 # 1 Sun, 05 Nov 2017 19:21:12 -0600
    220-We do not authorize the use of this system to transport unsolicited,
    220 and / or bulk e-mail.
    Connection established
    250-server2 Hello pc-xxx-xxx-120-200.cm.vtr.net [200.120.xxx.xxx]
    250-SIZE 52428800
    250-8BITMIME
    250-PIPELINING
    250-AUTH PLAIN LOGIN
    250-STARTTLS
    250 HELP
    334 VXNlcm5hbWU6
    334 UGFzc3dvcmQ6
    235 Authentication succeeded
    250 Reset OK
    250 OK
    250 Accepted
    250 Accepted
    250 Accepted
    221 server2 closing connection
    
    Servers Configuration:

    server1
    Code:
    root @ server [~] # cat / etc / centos-release
    CentOS release 6.9 (Final)
    
    root @ server [~] # / usr / sbin / sendmail --version
    Exim version 4.89 # 1 built 21-Jun-2017 15:43:43
    Copyright (c) University of Cambridge, 1995 - 2017
    (c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2017
    Berkeley DB: Berkeley DB 4.7.25: (September 12, 2013)
    Support for: crypteq iconv () IPv6 PAM Perl OpenSSL Content_Scanning DKIM DNSSEC Event OCSP PRDR Experimental_SPF Experimental_SRS
    Lookups (built-in): lsearch wildlsearch nwildlsearch iplsearch dbm dbmjz dbmnz dnsdb passwd sqlite
    Authenticators: cram_md5 dovecot plaintext spa
    Routers: accept dnslookup ipliteral manualroute queryprogram redirect
    Transports: appendfile / maildir autoreply lmtp pipe smtp
    Configure owner: 0: 0
    Size of off_t: 8
    2017-11-05 23:07:07 cwd = / root 2 args: / usr / sbin / sendmail --version
    Configuration file is /etc/exim.conf
    
    server2
    Code:
    root @ server [~] # cat / etc / centos-release
    CentOS release 6.9 (Final)
    
    root @ server [~] # / usr / sbin / sendmail --version
    Exim version 4.87 # 1 built 06-Jul-2016 10:04:19
    Copyright (c) University of Cambridge, 1995 - 2016
    (c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2016
    Berkeley DB: Berkeley DB 4.7.25: (September 12, 2013)
    Support for: crypteq iconv () IPv6 PAM Perl OpenSSL Content_Scanning Old_Demime DKIM DNSSEC Event OCSP PRDR Experimental_SPF Experimental_SRS
    Lookups (built-in): lsearch wildlsearch nwildlsearch iplsearch dbm dbmjz dbmnz dnsdb passwd sqlite
    Authenticators: cram_md5 dovecot plaintext spa
    Routers: accept dnslookup ipliteral manualroute queryprogram redirect
    Transports: appendfile / maildir autoreply lmtp pipe smtp
    Size of off_t: 8
    Configuration file is /etc/exim.conf
    
    We have reviewed the configurations and made several tests without success.
     
    #1 Ovivo, Nov 6, 2017
    Last edited by a moderator: Nov 6, 2017
  2. cPanelMichael

    cPanelMichael Technical Support Community Manager
    Staff Member

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    Twitter:
    Hello,

    Can you verify if both servers utilize the "WHM Home » Security Center » SMTP Restrictions" option? Also, what port are you using for sending email, and what specific commands or steps are you using when testing?

    Thank you.
     
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  3. Ovivo

    Ovivo Member

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    Dear
    In Server 1 (where it does NOT work a couple of weeks ago)
    The option is enabled
    In Server 2 I do not have access to Cpanel, is it possible to verify that parameter by SSH?

    The port is 587

    A massive email sending software is used. MassSender ..

    In both servers they work with those parameters without problems, in server1 I stop working a few weeks ago ...
     
  4. cPanelMichael

    cPanelMichael Technical Support Community Manager
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    Twitter:
    Can you try disabling it to see if the issue persists?

    Thank you.
     
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  5. Ovivo

    Ovivo Member

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    The option was disabled, but still emitting the same error
     
  6. cPanelMichael

    cPanelMichael Technical Support Community Manager
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    Twitter:
    Hello,

    Could you open a support ticket using the link in my signature so we can take a closer look?

    Thank you.
     
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  7. Ovivo

    Ovivo Member

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    Thanks, theSupport Request ID is: 9011373
     
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