email bounces are messages that are delivered to the nominated postmaster account on an email server to indicate a problem delivering the mail to one or more recipients.

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1answer
107 views

Send one invalid email response to sender

I discovered that my postfix/dovecot configuration isn't rejecting emails. If a person sends an email to an invalid email-address, it just drops it. I am fine with this behavior since I think it ...
2
votes
1answer
928 views

Having trouble interpreting mail log DNS errors

I have a postfix mail server on Debian. A client of mine just informed me that they were unable to send an email to me and it appears that there is a problem with their mail server. I would like to ...
1
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1answer
5k views

How to disable “sender non-delivery notification” in postfix?

I want postfix to stop sending non-delivery notifications to my local account, here is example from my log 17:47:08 A727B62C6F61: message-id=<20121124174708.A727B62C6F61@mail.***********> ...
0
votes
4answers
235 views

Is there a way to get Postfix to both forward an e-mail *and* reject it via recipient_address_rejected

In postfix, I'd like a way to deal with e-mail accounts that are no longer active by having postfix send the standard "Recipient address rejected" type message, but still forwarding the e-mail to ...
1
vote
1answer
82 views

Mailman bounce messages going to list

A number of users on a list had an issue with mail; Mailman messages were being rejected with a 550 error due to a problem with their server. For some reason, these bounce messages were then ...
0
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2answers
2k views

Messages fail to deliver when sending out a mass email

A client of mine sent out a mass email to a bunch of people on his contact list. A bounceback email was received by my client stating that: "The server has tried to deliver this message, without ...
-2
votes
3answers
394 views

APACHE - PHP - Bounce emails

I want to improve our mail server lists by handling all the bounces we get in our websites. I have a website which has over 8000+ users and another website which as over 1500+ users, they are emailed ...
2
votes
1answer
2k views

Postfix deferred email - How to expire so bounce-back email gets sent back

My hosted email server is "Refusing to talk : 550" with my postfix server. Gmail, Yahoo, Hotmail all accepts them fine. All of sudden hosted email provider decided not accept email from my server. I ...
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1answer
2k views

“Message rejected by Google Groups”? I am not using any Google Groups

Some of my email messages (sent from mydomain.com) just fail, message is returned with the following explanation: Delivery to the following recipient failed permanently: info@somecompany.com ...
0
votes
1answer
191 views

exim bounce address tag validation

I ma trying to set up BATV in exim but i am always getting an error: F=<> temporarily rejected RCPT <prvs=1234abcd=my_email@my_domain.ru>: invalid "condition" value ...
2
votes
1answer
7k views

Domain of sender address does not resolve (in reply to MAIL FROM command)

When sending out emails with postfix I sometimes get this error: 451 #4.1.8 Domain of sender address <user@mydomain.tld> does not resolve (in reply to MAIL FROM command) The domain ...
3
votes
1answer
280 views

Is null return path reliable indication of a bounce?

I have a mailbox that receives bounces as well as normal email (the latter includes messages from automated services). I want to filter out the bounces and forward them to another mailbox. Assume I ...
1
vote
3answers
2k views

Redirecting wildcard emails to one email with postfix

I'm creating a bounce email system where emails can reply to messages on my site. However when the emails are sent to the user containing the previous message, the Reply-To field contains an email ...
1
vote
1answer
270 views

if I define `my_domain`, postfix does not expand mail aliases

I have postfix v2.6.6 running on CentOS 6.3, hostname priest.ocsl.local (private, internal domain) with a number of aliases supportpeople: user1@ocsl.co.uk, user2@ocsl.co.uk, user3@ocsl.co.uk ...
1
vote
2answers
136 views

Is there a common X-Header for RFC 2821 “MAIL FROM”? Should it be DKIM signed?

w.r.t. the difference between RFC2821 MAIL From and RFC2822 FROM I'm considering having my MTA add a header specifying what was sent in the MAIL FROM portion of the envelope. The RFC2821 header is ...
2
votes
1answer
8k views

451 #4.1.8 Domain of sender address does not resolve

When sending out email to xxx@terremark.com through my own SMTP server (mail.sarit.be), the receiving mail server replies with: 451 #4.1.8 Domain of sender address <xxx@sarit.be> does not ...
0
votes
2answers
454 views

Postfix bounce local delivery with source address from orig_to

I am creating a python script to deliver local mail using various means. The problem is this: This script has to accept multiple virtual domains defined in /etc/postfix/virtual The script does the ...
2
votes
2answers
2k views

Setting bounce address using postfix

I want to set the bounce address or return path address to a particular email address(say someemail@example.com). Such that whenever a mail bounces it will send a reply to someemail@example.com. How ...
1
vote
2answers
2k views

How to disable all bounce back email in exim 4.69

I have set up an email server to send out solicited newsletters. There should be no "regular" users of this server, so it is not desirable to send bounce notifications back to the recipient. ...
2
votes
1answer
65 views

Understanding the many “FROM” addresses that apply to SenderID, DKIM, and SPF

Can someone tell me when and why a client, MTA relay, Unix .Forward, anonymous relay, or listserver will create, or alter these headers: Resent-Sender: Resent-From: Sender: From: If you can please ...
3
votes
1answer
1k views

451 Temporary local issue with sending out emails

2012-06-14 21:57:14 cwd=/etc/csf 4 args: /usr/sbin/sendmail -f alerts@host2.thetimesoftimes.com -t 2012-06-14 21:57:14 1SfEIE-0000wK-Kj <= alerts@host2.thetimesoftimes.com U=root P=local S=678 ...
0
votes
1answer
714 views

Emails from Hotmail to our domain always bounce

Now this is a rather odd problem with emails from any hotmail address being bounced by one of our domains. First off, I can guarantee that this is not a spam filter issue as there is defintitely ...
0
votes
1answer
541 views

Postfix bounces and rejects some of non existing emails for same domain

Postfix serves for my virtual domains and works fine. But for one of my domains: - it bounces mails targeted at mail@domain.tld - it rejects mails targeted at nonexisting@domain.tld problem is, ...
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votes
2answers
370 views

Can anyone tell me why an e-Mail with an attachment fails from one domain but not another?

I am trying to get e-mail to a customer of ours. From my internal Exchange server, I can send the e-mial successfully to the customer if there is no attachment. I can send the email successfully to ...
0
votes
1answer
203 views

Making CommuniGate Pro react better on SPAM and Backscatter issues

I would like to make a CGP mail server as SPAM free as possible. I made some research but didn't find so much. So my question: where should I start in order to make CommuniGate dealing better with ...
2
votes
1answer
168 views

Drop all emails that aren't forwarded by postfix

I'm setting up a forwarding only email server. I want to apply some static forwarding rules to all incoming emails and bounce all other incoming emails (and not store them locally). ...
0
votes
3answers
246 views

Why is Yahoo blocking our email address verifications and bouncing them back

I have a legitimate site www.angelescity.ph a Free Classifieds site, once someone posts an advert a verification email is sent.. Yahoo has been blocking them, not delivering and bouncing them back, ...
1
vote
1answer
1k views

Frequent Rejection of Emails: 554 - MTA's Poor Reputation

My colleagues and I share an email address and for the last 3 to 4 weeks, we have been receiving frequent error messages when sending out emails to our clients. It is generally the 554 - MTA's poor ...
0
votes
4answers
434 views

What should email server do with email sent to unknown users?

When my email server receives mail sent to an unknown local user should the server send the message back to the sender or should the email just be dropped? I'm just curious what is most preferred. I ...
0
votes
1answer
64 views

The operation of email bounces message

I would like to know the bounces message is sent from own MTA or others? e.g. a sender use gmail MTA to deliver mail, if encounter error (soft/hard bounces) , Which MTA will deliver the bounces to ...
2
votes
1answer
1k views

Dreamhost email sending issues

This has happened from time to time in the past with the emails showing up eventually hours to days later, however I sent some emails last week with a true result to Gmail and they still haven't ...
3
votes
1answer
771 views

SPF problems with Google Apps

I currently have an SPF record with a hostname of @ that is: v=spf1 mx ip4:x.x.x.243/32 include:_spf.google.com include:amazonses.com ~all I also have another record of" spf2.0/pra mx ...
2
votes
1answer
389 views

Example smtp dsn bounce messages for testing

I'm working on building a feature for a larger system that will be able to parse and react to dsn bounce messages received from all different types of smtp servers. It be great to test the code I ...
3
votes
4answers
588 views

Bounce backs from web-generated e-mails are missing

We use Google Apps to host my company's mail. On our website, we send some e-mails on behalf of our users. In those e-mails we include lines like this: Return-Path: ...
2
votes
2answers
370 views

Gmail delivery sometimes fails to domain1 but never to domain2, both domains have the same MX, etc

Lets say we have 2 domains, domain1.co.za and domain2.co.za. Both point to the same MX records with the same priority, mx1.isp.co.za and mx2.isp.co.za, both of which send the mail through our ISP's ...
1
vote
2answers
926 views

Ubuntu Linux - Postfix is rejecting all email coming from non-localhost

I am not sure exactly what is going wrong here, but my server (Postfix?) seems to be rejecting all external emails going to the server mydomain.info. Here is the bounce-back message I am receving, ...
0
votes
2answers
924 views

Postfix relay gives error 450 while it should be 550

we use postfix to do relaying. We get several messages like the following in /var/log/mail (slightly edited) Apr 13 13:30:29 linserver postfix/smtpd[1064]: NOQUEUE: reject: RCPT from unknown[$ip]: ...
2
votes
1answer
218 views

How do I configure my domain and web application so the emails send from the latter are not blocked as spam?

I have a WordPress site that needs to send notifications to an email address. I would like the from field from this emails to be an address on my client's domain. I dont know much about email ...
1
vote
3answers
1k views

Make Exim send bounces to postmaster instead of the sender, for non-local sender

I have a few e-mail aliases that forward to external hosts. Currently, if the external host rejects a message, Exim generates a bounce message and sends it to the original sender. This is bad because ...
0
votes
1answer
2k views

550 5.7.1 Your email messages have been blocked by the recipient OR by Trend Micro Email Reputation Service

I have an email account with POP3 connection and I am having a problem sending emails when I'm out of the office. I keep getting this email error message "550 5.7.1 Your email messages have been ...
4
votes
3answers
2k views

Anyone have a Powershell script to look up the MX record for a domain?

I want to check to see if the email addresses in my contact management system are valid and the best way I can think to do this is to get the MX record for their domain, then open an SMTP connection ...
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votes
2answers
150 views

My bulk email company supresses all hard bounces -even if they get their IP's blocked

I send out about 500,000 emails every week. I have been sending the list out for about 1 year. But in conversation, I was advised that the company sends in a shared IP manner. So my list goes out ...
5
votes
1answer
2k views

How should I configure postfix to avoid sent emails bouncing because of “Invalid HELO name”

Some mail sent from sites on my server bounce back with the following mail.log message Nov 26 17:27:53 blogu postfix/smtp[16858]: C4DD22908EC0: to=, relay=rejecting-domain.ro[rejecting-ip]:25, ...
1
vote
0answers
182 views

Why did postfix deliver a bounce notification to a local spool file, when delivery to this user has been disabled?

My postfix configuration allows mail via several local_recipient_maps. However, delivery to "proxy:unix:passwd.byname" is specifically disabled. This normally prevents delivery to local unix users: $ ...
2
votes
1answer
148 views

Auto email from IP is bouncing back

I'm working on an e-commerce website based on ASP Vb. which has auto email(HTML) after people placing order, requesting forgotten password, etc. MY problem is after email has sent, basically I get ...
1
vote
2answers
1k views

Postfix - don't generate “unknown user” bounces if message is Spam

We receive a a lot of spam addressed to (random) non-existing users. This causes postfix to generate "unknown user" bounces to the fake sender. As a workaround I use a catch-all to redirect any mail ...
0
votes
1answer
374 views

IIS6 SMTP service attempts to send mail to domain root A records instead of MX, why?

Getting some random bouncebacks on e-mail processed through an IIS6 SMTP service acting as a smart host (outbound mail gateway). Configuration example... For domain example.com we there is a Root A ...
1
vote
1answer
639 views

How Do I Troubleshoot Exim Mail Retry Issues?

My server is encountering high CPU load (like almost pegged at 100%) so much that the Apache service can't run and we get Apache 500 errors. We used a script to catch this and this is where we ...
8
votes
1answer
2k views

Sending emails on behalf of my clients. The options

I wanted to know the best way to make my mailserver send emails on behalf of my clients' domains, without being greylisted and also avoiding bounce problems. I've been reading some other questions ...
0
votes
2answers
560 views

Is it okay to resend to hard bounced emails after X days. What is X?

If I see an email returned due to a hard bounce, after how many days is it acceptable to resend to that email address. It is possible for emails to be reactivated or for temporary outages, so it ...