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Questions tagged [ndr]

38 questions
1
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6 answers

How to handle invalid email addresses?

My server is windows server 2003. I got a huge list of subscribers. Lots of them have invalid email like, user@yahoooooo.com, user@gmailyahoo.com, user@homail.com... I want to send a email to all my users, but it will send to those invalid email as…
mcfadder_09
1
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1 answer

email server have no reverse DNS entry

I'm having problem with one of my target email recipient, when I tried to send email to abacus@abacusevents.com, I got this error message from my email server: Diagnostic information for administrators: Generating server:…
Senior Systems Engineer
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#550 5.6.0 M2MCVT.StorageError; storage error in content conversion ##

We are getting this error on one user's computer, running Windows 7 and Outlook 2007 in a domain environment. Exchange Server is 2007. It only happens occasionally for random email addresses, internally and externally. Sometimes sending images and…
Kez
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1 answer

Postfix LDAP aliases - user unknown

I have server POSTFIX + DOVECOT with LDAP (ActiveDirectory) authorization. /etc/postfix/ldap_virtual_mailbox_maps.cf query_filter = (&(objectClass=person)(mail=%s)) result_filter = %s result_attribute =…
Vitaly579
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1 answer

Postfix - NDR messages immediately when sent to a bad domain

We have a service that we offer to one of our clients that sends statements to their clients. Unfortunately, our customer's validation of email addresses isn't always the best, so when they submit a batch to us to send we usually see a lot of…
StarKev2525
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2 answers

Can I redirect all of the NDRs for my domain to a central mailbox in Exchange Online?

At my company our ticketing system pulls from dedicated mailboxes, but when an email is sent from one of them due to some automated process or other and fails it of course throws an NDR. The problem is that those NDRs trigger new tickets. What I…
Rev.Felix
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1 answer

how to stop postfix relay server to forward bounce/NDR emails to client

I have a setup with 1 pure mail server, lets call it mail, and 1 web server, lets call it web. When web sends out email to an external server it uses mail as relay. Both servers use postfix. mail has a MX record and is the the official mail server…
Matthias
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1 answer

Exchange Server 2003 random NDR's and DNS

We run an Exchange 2003 email server which also doubles as a SDC / DNS server. The PDC also serves DNS requests too. Every now and again an email will fail. Where the email is going to or coming from doesn't seem to make much difference as long as…
JohnyD
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1 answer

Configure server to ignore NDRs to forged addresses/domains

AT&T's Blacklist site suggests one option of correcting mail server issues is: Reconfigured server to ignore NDRs to forged addresses/domains However, NDRs are returned to the sender by their own server's mail daemon. So, it seems that one's mail…
Michael Yaeger
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1 answer

Postfix - Non delivery report for specific source address when sending to specific target address

Using Postfix (version 2.10.2.2, part of a Zimbra installation) on Ubuntu I would like to be able to achieve the following: If an email originates from userA@example.com that targets userB@example.com generate a non delivery report simulating that…
HenningM
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0 answers

IIS 6.0 SMTP not sending NDR to user from web application

We have a web application that is configured to use an internal mail relay running on Windows Server 2012 R2, IIS 6.0 for the SMTP though. I just put this server in place as a replacement for an old 2003 server that was doing the same function. I…
Thorin
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2 answers

Exchange - No NDR

I try to send a test email from my personal email account to a non-existent email in my company's domain. I don't receive NDR at all. I'm under Exchange 07 SP1. Where can I configure it ? Thx for your help guys.
Bastien
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1 answer

Google gmail block for no ptr of 4to6 ip address

When mail server got only ipv4 address and enabled 4to6 interface, gmail server block mail because of no ptr record of 4to6 address. Why...? Isn't 4to6 address not global standard...?
kj.park
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4 answers

SBS 2003 suddenly not delivering emails to outside domains

This afternoon our server in the office suddenly started refusing to deliver mail to outside domains - email for our domain is still delivered. I've tried Googling around and I can't find anything quite like this. It's Small Business Server 2003 SP2…
Ben
0
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1 answer

What software generates the SMTP bounce message "550 Envelope blocked - User Entry"?

I'm troubleshooting an issue where email sent from a specific user is blocked every time to only a specific sender. The NDR generated (from our Exchange server) has the following message: #550 Envelope blocked - User Entry ## The recipient says…
joelsand
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