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amanzoorFlag for Canada asked on

you do not have permission to send to this recipient........Exchange server 2003 ent edition

Hi all
Past few days when a particular user tries to send to few domains gets: user@domain.com on date time you do not have permission to send to this recipient for assistance contact system admin <exchange2.domain.com #4.7.1 smtp;450 4.7.1 <exchange2.domain.com>: Helo command rejected: Host not found>
What is wrong and how to fix it.  Is it my exchange server?  I think mostly the domains I am having trouble are in India.
Help plz

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amanzoor

8/22/2022 - Mon
ittogo

ASKER
amanzoor

ittogo:
Thanks for the link:  This article is very generalized:  Here is the one of the latest emails I wanted to send to this domain:

220 mail.mayocollege.com ESMTP Postfix (2.3)
ehlo mail.mayocollege.com
250-mail.mayocollege.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
mail from:amanzoor@mydomain.com
250 2.1.0 Ok
rcpt to:principal@mayocollege.com
554 5.7.1 <mail.mayocollege.com>: Helo command rejected: Invalid Helo Response,
Looks like you are running a broken mail server

Now it says 'I am running a broken mail server'.  Help please

ittogo

It looks like you are being rejected by the receiving mail server (error 571).  This can be for a number of reasons such as being on a blacklist (check at http://www.mxtoolbox.com/blacklists.aspx), or possibly the IP address of your server does not resolve to your domain name.  Some servers will reject if this is the case.
Experts Exchange is like having an extremely knowledgeable team sitting and waiting for your call. Couldn't do my job half as well as I do without it!
James Murphy
ASKER
amanzoor

ittogo:
My email server does not exist in the link you provided.  I use 'spamhaus' for filtering and I checked their website as well my mail server is not listed anywhere in blacklist.  under my ESM default SMTP properties under advanced my server was listed as 'exchange2.mydomain.com' but when I checked on '
http://www.webmaster-toolkit.com' my mx records were listed as:
10 mail.mydomain.com
20 intra.mydomain.com <<<< this is sharepoint server, I think it should not be there, suggestion ???
Which priority the mail server should be in?
-I just changed under ESM, SMTP properties and changed the server name from 'exchange2.mydomain.com to mail.mydomain.com'<<< I gues this change will take time to flow down.
Help
ASKER CERTIFIED SOLUTION
ittogo

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ASKER
amanzoor

ittogo:
I will talk to my ISP and get rid of the other entry to avoid confusion.  My ISP is already configured to hold our emails.
I appreciate your help and wait for this to be resolved.