Questions tagged [email-bounces]
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.
404
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Sendmail unable to email to specific domain
I have a server running Sendmail and is able to email to all domains except my company's email (company1.com). I have tested to sending to gmail and other email providers with no issues. Sendmail is ...
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1
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76
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How to make postfix sign non-delivery notifications with DKIM?
I have set up my "postfix" server to sign outgoing messages with DKIM and verified that it works correctly for SMTP users using authentication. However, "non-delivery notifications"...
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1
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126
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POSTFIX - sending mails. My mails sent outside bounce back
main.cf
compatibility_level = 2
command_directory = /usr/sbin
daemon_directory = /usr/lib/postfix/sbin
data_directory = /var/lib/postfix
mail_owner = postfix
myhostname = mail.aufy.pl
mydomain = aufy....
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2
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410
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postfix time to time issue delivery temporarily suspended connection timed out
I have a Postfix installed on an Oracle Linux server. This Postfix is configured to receive emails from another Postfix server, which are sent externally through the Fortinet Cloud Email Security ...
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1
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103
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Postfix - How to send bounces only to postmaster?
I have an internal Postfix server where bounces are intentionally discarded (not recommended in general but needed for my use case).
I would like to enable it temporarily but only to the postmaster, ...
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2
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237
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Changing hostname for the purpose of email delivery
I have email delivery issues, and MXtoolbox says "Reverse DNS is not a Valid Hostname". I have A and AAAA records for domain.com and mail.domain.com. The data center has set up reverse DNS ...
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What exactly is Return-Path and who sets it?
This article (https://www.sparkpost.com/resources/email-explained/return-path-explained/) explains "Return-Path" as follows:
When an email doesn’t make it to its intended destination, the ...
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268
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postfix configuration to prevent bounces when relaying to 3rd party (e.g. src -> my@work -> my@gmail)
i have an active mail relay that is using aliases as a main tool,
at some point we started to get bounces for some emails.
Source: somerandomsenderdomain.com
Destination: myemaildomain.com
...
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1
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482
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postfix mail to relayhost gets bounced dsn=5.0.0: how to debug?
Postfix sends mail to relayhost, but relayhost bounces back with dsn=5.0.0 and no further details.
Q: How can I debug this in detail so that I can find out where I made the mistake?
Setup:
smtp-client....
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124
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SPF Limits and SPF Merging
I am using Zoho Mail, AWS SES, GMAIL SMTP, Cloudflare email route and Yahoo SMTP. they all have there own SPF record. i saw on Google the only 1 SPF should be added in hostname and maximum 10 SPF ...
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153
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Multiple problems when trying to set up a no-reply email adress
I have an email server setup using Postfix, Dovecot and MySQL with virtual mailboxes using PostfixAdmin. This was created following a tutorial, because I am fairly new to email servers, and everything ...
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1
answer
121
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Postfix: outgoing email error
Email send but not reached the receiver's mailbox, mainly for Google, Microsoft, and yahoo.
Already checked blocklisted or not, but no blocked there.
mail queue is mentioned below.
C6A02490A1 11809 ...
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1
answer
305
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Email failure delivery
I already know the answer to my question, but I need to point to a reputable source to back up my claim, so I'm asking you to please describe what you think about the situation in simple terms.
My ...
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1
answer
110
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Postfix: Bounce incoming email, but still deliver
I run my own mailserver but I am getting "spammed" by a certain individual. In order to try to discourage this person from sending me any more emails, I would like to bounce the incoming ...
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72
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Get email notification when an email is marked as spam
I use AWS SES to send emails to users who registered on my website. When I receive an email from AWS about a bounce or a complaint, I remove that user from the database. I'm OK doing this manually (no ...
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resolve 5.1.0 Address rejected. Status: 5.3.0 issues
I send bulk mail to people that have joined our organization. The mail has unsubscribe links and if anyone click the 'mark as SPAM' button I don't send mail to that address again. I use DKIM/SPF and ...
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Send bulk emails with valid DMARC security
We are implementing a feedback feature in our web application. After completion of an event, we are sending emails requesting feedback and ratings to our visitors.
If we do write the following DMARC ...
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50
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SendMail Bounce Back Missing Send To Address in Transcript
SendMail bounce back response is showing a blank To address. How can I correct this so the bounce back includes the To address?
This began occurring after installing opendkim on the server and before ...
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1
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10k
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Gmail does not accept mail from a new VPS server with PTR setup
I have PTR records setup but I am not able to deliver mail to Gmail accounts:
host gmail-smtp-in.l.google.com[2607:f8b0:4004:c08::1b] said:
550-5.7.25 [2a01:4ff:f0:a7b6::1] The IP address sending ...
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Why is email sent from my AWS SES server cannot arrive on corporate-domain email, but arrive on mail service such as Gmail?
The summary:
email from SES did not arrive at user's corp domain email.
email from SES arrives at my corp domain email but is hosted at Gmail.
email from my private Gmail arrives at user's corp ...
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1
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Postfix user login file
I am Linux centos for my email server. I have already tried with "tail -f /var/log/mail.log and /var/log syslog". Now where can I find my email users last 1 month login logs?
Thanks
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Postfix: how to accept then bounce emails for some domains (example: gmail.fr)
All this is specific to domains with no incoming emails at all and with no available MX.
A domain may not have any MX record, that's RFC-compliant, but may have a A record that doesn't point to any ...
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How can I understand if my MX is changing the message envelope?
I have an exim4 server that forwards all input emails to a gmail account.
Gmail is refusing some valid messages with this error:
SMTP error from remote mail server after end of data: 550-5.7.1
Our ...
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407
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520 ip and spf record not match
We are using Google Workspace and set Email forwarding using recipient address map to forward messages at our domain name (@example.com) to an external domain name (@external.com). Ex. mail sent to ...
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1
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1
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261
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Procmail not bouncing emails
I have a catch-all email address for my domain, however I want to block certain addresses from receiving mail. Before, I was doing it like this:
:0
* ^(X-Original-To): [email protected]
/dev/null
...
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1
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140
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Privacy-friendly Postfix bounce messages for remote rejects
The topic of handling bounce message for remote rejects has been brought up at least three times (1, 2, 3), and it looks as if there is no real solution. I wonder, though, if the bounce template can ...
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329
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How to avoid emails sent to Google's deep web crawler
My website has an area restricted to users who sign up with a valid email. I have got requests with bogus emails, and I want to avoid sending emails to non-existent addresses lest they increase the ...
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What exactly can I conclude from "High scoring spam message has been dropped (in reply to end of DATA command)"?
I operate a web site that offers user registrations. Users get automatic registration success e-mails, sent through a professional e-mail hosting company (not directly from our own server). This has ...
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588
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How to verify if an email was received and read
I accidentally sent an email to a wrong email address. The owner told me that he didn't receive my email because there were no email servers configured for that domain. However when I did MX lookup, I ...
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550-5.7.26 Unauthenticated email from domain is not accepted due on ERP only
I have made updates to our mail server to use DMARC. So after This our ERP system cannot send emails to gmail.com or yahoo.com but Outlook sends emails with no problems.
Below is the header for an ...
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My Exchange generates "Mailbox full" for recipient's mailbox but it isn't full
When I am sending an email to [email protected] then my Exchange Server 2010 [14.01.0438.000] rejects the email with the message that the recipient's mailbox is full.
I contacted the company and they ...
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2
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3k
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Gmail is blocking email from my IP
I've had a virtual private server for close to 6 months, and I'm going to start sending emails to users from [email protected]. My handful of email tests so far have all resulted in a bounce ...
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123
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Do spam filters care about the reputation of the "A" record
I have a domain set up and an email address hosted with a third party provider (Zoho).
Whenever I send an email from this domain (mostly just personal emails, no mass marketing or anything like that) ...
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561
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Mail Bounce due to Invalid string MX record
I'm new to managing a mail server and I encounter an issue with sending a message to a certain domain.
Our emails are bouncing back on us with the error of the Invalid MX record string.
I'm using ...
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1
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353
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How to resend bounced email messages using mutt
Background
An email relaying issue was resolved.
32 email messages to sponsors had bounced to root.
I copied /var/mail/root to /tmp/root.
I deleted irrelevant messages from /tmp/root (using mutt).
...
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108
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postfix limit sending rate PER MX domain?
I know postfix can limit concurrent connections to recipient "domains", but I am sending emails to websites from different domains that may use the same email service (Google, Outlook, etc.) ...
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0
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668
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Why are some emails not reaching my inbox?
I'm very new.
I set up email on my domain (postfix, dkim, dmarc, spf, dovecot... s-nail, Roundcube) by following reliable guides.
I now have 9 addresses, 3 different FQDNs. Emails from all addresss' ...
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2
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1k
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Barracuda Bouncing Emails
I'm not too familiar with all the intricacies of email servers and am curious what you guys think this looks like.
Is the receiving blocking it or is this something on our end?
The receiving company ...
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0
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1k
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Bounced Email / Invalid MIME Content
Has anyone seen a bounced email because of the header size?
My Cisco Ironport appliance receives the following NDR when sending emails to Office365.
bounced by destination server. Reason: 5.3.0 - ...
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1
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Different email acount on different MX priority
Say you have the ff. email server:
server1.com has the mailbox [email protected]
server2.com has the mailbox [email protected]
If the MX priority settings are:
Priority: 0
Destination: server1.com
...
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4k
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Postfix: How to check if my email headers are RFC5321/RFC5322 compliant?
We are running a Postfix MTA (version: 3.4.14, OS: Debian 10) and since a short time emails sent to a certain provider (Web.de/GMX) are not being accepted anymore (the emails are sent by an ancient ...
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How to solve '521 5.7.1 Service unavailable; client x.x.x.x blocked using Return-Path'?
How to solve or interpret following error? I'm not sure if anything should be done on client (sender or sending account of a domain) or ask remote postmasters for help.
<[email protected]> (...
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549
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Exchange 2010 distribution group, NDR message not being sent to original sender, when unauthenticated option in place
We got a requirement to reject external emails sent to one distribution group ([email protected]) using exchange 2010 transport rule in this manner. (and send NDR to the original external sender)
We ...
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731
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Emails sending with postfix fail to outlook emails but success with gmail
I have set up postfix server. I am testing my email sending . i can send to gmail but all outlook mails are getting rejected, may i know how can i fix ? Any config i have to change ?
Nov 27 10:35:15 ...
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1
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160
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Postfix not receiving bounce mails
I am using Postfix to only send Mails out (via my noreply mail), which works great.
I would like to use my support mail, which is running on the server of my mail provider, to receive user replies and ...
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460
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Postfix bounces incoming emails with uppercase recipient (unknown user)
I just installed Postfix on Debian minimum server and configured it as below:
installation:
installed it
chose internet site
set name to mydomainname.com
/etc/postfix/main.cf configs:
changed ...
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2
answers
317
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Exchange 2010 rejecting some Gmails
My work Exchange server just recently started rejecting some emails sent from Gmail accounts. Some emails sent from Gmail accounts come through just fine.
We have our spam protection through Google ...
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1
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1k
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Might "Require TLS Encryption" in Exchange mail-flow rules cause compatibility issues for e-mail?
Picture of how I'm forcing TLS.
This is essentially forced TLS.
Should "Require TLS Encryption" be required for microsoft exchange mailflow rules?
I'm worried about compatibility issues, e-...
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471
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Is it a good practice to bounce noreply@domain? Or rather stick with automated reply?
I notice a lot of our users are replying to our automated noreply email with actual questions that should've been sent to either of our offices. This does not include the client's autoreply software (...
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1
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Is it a DMARC failure if disposition=none & dkim=fail?
When I get one of these DMARC reports from Google is it because there is a problem? Or is it standard protocol. I am curious because I sent one test email and got this DMARC report to abuse@...
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