The Community Forums

Interact with an entire community of cPanel & WHM users!
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

SMTP error from remote mail server after HELO server

Discussion in 'E-mail Discussions' started by TheReliableHost, Oct 2, 2014.

  1. TheReliableHost

    TheReliableHost Member

    Joined:
    Aug 5, 2008
    Messages:
    13
    Likes Received:
    0
    Trophy Points:
    51
    Location:
    India
    cPanel Access Level:
    Root Administrator
    I have setup new server for a client, CentOS, CloudLinux.

    not all emails but few of them are giving

    SMTP error from remote mail server after HELO server:
    host mx01.gmx.com [74.208.5.27]: 501 Syntax error in parameters or arguments

    SMTP error from remote mail server after HELO server:
    host mx-ha02.web.de [213.165.67.120]: 501 Syntax error in parameters or arguments

    Please can you guys help me.. what problem can be?
     
    #1 TheReliableHost, Oct 2, 2014
  2. mbekezm

    mbekezm Member

    Joined:
    Dec 22, 2011
    Messages:
    13
    Likes Received:
    0
    Trophy Points:
    51
    Location:
    Port 80
    cPanel Access Level:
    Root Administrator
    Try checking to ensure a valid PTR (RDNS) record is configured for the IP address used for sending email from your server. Typically, your data center or hosting provider must configure this record for you, and it's advised to have it match the hostname of the server.
     
    #2 mbekezm, Oct 2, 2014
  3. TheReliableHost

    TheReliableHost Member

    Joined:
    Aug 5, 2008
    Messages:
    13
    Likes Received:
    0
    Trophy Points:
    51
    Location:
    India
    cPanel Access Level:
    Root Administrator
    Its already set.
    Network Tools: DNS,IP,Email
     
    #3 TheReliableHost, Oct 2, 2014
  4. mbekezm

    mbekezm Member

    Joined:
    Dec 22, 2011
    Messages:
    13
    Likes Received:
    0
    Trophy Points:
    51
    Location:
    Port 80
    cPanel Access Level:
    Root Administrator
    I did a google search on error 501 and this is the result ..

    • Error 501: Syntax error in parameters or arguments. >>In the majority of the times it's due to an invalid email address, but it can also be associated with connection problems (and again, an issue concerning your antivirus settings).<<
     
    #4 mbekezm, Oct 2, 2014
  5. TheReliableHost

    TheReliableHost Member

    Joined:
    Aug 5, 2008
    Messages:
    13
    Likes Received:
    0
    Trophy Points:
    51
    Location:
    India
    cPanel Access Level:
    Root Administrator
    No email problem as I tried with different email address too.. Same way cant be Antivirus problem too
     
    #5 TheReliableHost, Oct 2, 2014
  6. cPanelMichael

    cPanelMichael Forums Analyst
    Staff Member

    Joined:
    Apr 11, 2011
    Messages:
    35,756
    Likes Received:
    1,143
    Trophy Points:
    363
    cPanel Access Level:
    Root Administrator
    Hello :)

    The message you are receiving is from the remote mail server. Is it only happening for that particular server? If so, try contacting their support or mail administrator to see why they are bouncing your messages with that error.

    Thank you.
     
    #6 cPanelMichael, Oct 2, 2014
  7. TheReliableHost

    TheReliableHost Member

    Joined:
    Aug 5, 2008
    Messages:
    13
    Likes Received:
    0
    Trophy Points:
    51
    Location:
    India
    cPanel Access Level:
    Root Administrator
    For now two different email servers
    SMTP error from remote mail server after HELO server:
    host mx01.gmx.com [74.208.5.27]: 501 Syntax error in parameters or arguments

    SMTP error from remote mail server after HELO server:
    host mx-ha02.web.de [213.165.67.120]: 501 Syntax error in parameters or arguments

    I doubt there may be some config problem or server.. one email is ok.. that it can be remote server problem but why two emails? I will get any more errors and then will be right back.
     
    #7 TheReliableHost, Oct 2, 2014
  8. cPanelMichael

    cPanelMichael Forums Analyst
    Staff Member

    Joined:
    Apr 11, 2011
    Messages:
    35,756
    Likes Received:
    1,143
    Trophy Points:
    363
    cPanel Access Level:
    Root Administrator
    Are you using a syntactically correct hostname? For instance, make sure there are no capital letters and it's a valid FQDN. Also, ensure your entries in /etc/mailhelo for your domain names are valid.

    Thank you.
     
    #8 cPanelMichael, Oct 2, 2014
  9. TheReliableHost

    TheReliableHost Member

    Joined:
    Aug 5, 2008
    Messages:
    13
    Likes Received:
    0
    Trophy Points:
    51
    Location:
    India
    cPanel Access Level:
    Root Administrator
    Yes I think so.. please check yourself

    Network Tools: DNS,IP,Email
     
    #9 TheReliableHost, Oct 2, 2014
  10. cPanelMichael

    cPanelMichael Forums Analyst
    Staff Member

    Joined:
    Apr 11, 2011
    Messages:
    35,756
    Likes Received:
    1,143
    Trophy Points:
    363
    cPanel Access Level:
    Root Administrator
    What about the /etc/mailhelo file? Do you see valid entries in this file?

    Thank you.
     
    #10 cPanelMichael, Oct 2, 2014
(You must log in or sign up to post here.)
Loading...
Similar Threads - SMTP error remote
  1. Jorge Rodriguez

    SMTP error from remote mail server after MAIL FROM | 550-Verification failed

    Jorge Rodriguez, Mar 17, 2017, in forum: E-mail Discussions
    Replies:
    1
    Views:
    640
    cPanelMichael
    Mar 17, 2017
  2. Serggyo

    SMTP Error From Remote mail

    Serggyo, Feb 22, 2017, in forum: E-mail Discussions
    Replies:
    5
    Views:
    422
    cPanelMichael
    Feb 22, 2017
  3. alphasil

    SMTP error from remote mail server

    alphasil, Sep 4, 2016, in forum: E-mail Discussions
    Replies:
    7
    Views:
    2,227
    cPanelMichael
    Sep 6, 2016
  4. Brian Renzo

    smtp error from remote mail server after rcpt to 550

    Brian Renzo, Aug 4, 2016, in forum: Discusión en Español
    Replies:
    3
    Views:
    755
    cPanelMichael
    Aug 4, 2016
  5. randjscr

    Mail Delivery Failed. SMTP error from remote mail server after RCPT

    randjscr, May 12, 2016, in forum: E-mail Discussions
    Replies:
    2
    Views:
    3,085
    cPanelMichael
    May 26, 2016

Share This Page