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.

learn more… | top users | synonyms

0
votes
2answers
90 views

Receiving mail in a python process on an aws instance

I'm using a Python smptd server on an AWS instance. It's listening on localhost, port 25. I can send mail to it through a Python smtp client on the same instance. I have an elastic IP associated with ...
0
votes
2answers
246 views

My mails are filtered and delivered to Hotmail's JUNK mail folder

I've contacted Microsoft and filled in the JMRP, SNDS, and SenderID registration. Also I've put the correct SPF record on my server. After several tests I note that emails containing plain text go to ...
0
votes
2answers
196 views

Will Hotmail DELIVER to spam-friendly ISP?

I have a user who is using Hotmail to communicate with one of our suppliers. Recently, Hotmail started bouncing emails to that address (while other ISPs are working fine.) Hotmail bounce messages ...
2
votes
1answer
32 views

Catch All Email for Old Domain?

We've been on our new domain for over a year now and we have removed our redirects from the individual accounts but my boss wants to have a catch all email account so just in case there are messages ...
2
votes
1answer
77 views

sendmail cant send mail - Centos6/7

I have a newly minted CentOS 6.7 box to set up sendmail on. It seems sending email but not really, no idea whats the issue could be. What I did: yum install sendmail sendmail-cf sendmail-doc ...
1
vote
1answer
31 views

Setting FROM Email Address in FREE SmarterMail 15 for Delivery Failure Notices

I have Free SmarterMail 15 setup on a Windows Server to allow CDONTS and php mail to send emails from contact forms. When the to email address is invalid, a delivery failure notice is sent to the ...
1
vote
1answer
52 views

Originating (non-critical) emails from a “less-trusted” host

Background We have a webapp running on webapp.example.com that (amongst other things) sends messages by email from time to time. These messages are non-critical: whilst we would like to make a best ...
1
vote
1answer
101 views

What is the best approach to handle email form abused by bots?

I just recently moved to a Dedicated Server hosting from a normal Reseller Hosting, and currently facing issue with email blacklisting. One of my clients has about 4 contact forms that automatically ...
0
votes
1answer
14 views

Google mail servers returing Deffered: 450-4.2.1. for no apparent reason

We have a problem with our sendmail: gmail is always returning the "Deffered: 450-4.2.1." error. I checked all available documents and help articles, but it only confuses me. I am testing this on my ...
0
votes
1answer
18 views

451 5.7.3 STARTTLS is required to send mail Exchange 2013 Hybrid

Certificate from GoDaddy is in place, I have removed esmtp inspection from our Cisco ASA, and hybrid mail is flowing from Office 365 to our on prem Exchange 2013 server. When trying to send mail to a ...
0
votes
1answer
32 views

How to troubleshoot emails from some hosts not being received without error messages

I am trying to troubleshoot the server I mantain. It is a Centos 6.6 with Plesk 12.0.18, it uses Qmail and Courier as email services from what I can see. Now in general all emails work succesfully ...
0
votes
1answer
475 views

Outbound SMTP email not being delivered, but still disappearing from the queue and pickup folder

After setting up my smtp server on a Windows 2012 server r2 on port 587. I tested the email functions by creating a text file labeled email with the following code inside: From:admin@mydomain.com to:...
0
votes
1answer
32 views

how to discourage email spoofing

One of my production server emails look like to be spoofed from another network. The team (group or individual or professional company) is sending mass mails out to their list of users, using our ...
0
votes
1answer
358 views

Setting Up PTR to correct “Forged hostname” error

Our e-mails mostly get through fine, but here's an error I haven't seen before. Diagnostic-Code: smtp;550 5.7.1 ... Forged hostname for 66.132.221.45 >which resolves as www.medialabinc.net but www....
0
votes
1answer
252 views

Postfix: don't bounce for remote rejects

I'm having a problem with sending bounces to spammers when a remote "trusted" smtp server rejects a mail. My server manages mail for company1.com that has a virtual alias support@company1.com that ...
0
votes
1answer
186 views

Configuring Sendmail to report successful deliveries

I now have Sendmail report the fail deliveries by bouncing back to a bounce mailbox. E.g. failure to reach joe@example.com would bounce back to bounce+joe=example.com@mysite.com. I was wondering if ...
0
votes
1answer
388 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 "my_email@my_domain.ru"...
0
votes
1answer
2k views

Recipients Auto Rejecting Emails Sent With Exchange 2010 - Certificate Error

A strange problem recently developed with one of my Exchange 2010 servers. I have an exchange server setup as part of a Windows Small Business Server 2011 installation. The email for the domain was ...
0
votes
1answer
159 views

smtp working pop not working

My DNS settings are as follows. A Record: HOST = @ POINTS TO = 65.75.241.26 HOST = beta POINTS TO = 65.75.241.26 HOST = stable POINTS TO 65.75.241.26 CNAME Records: HOST = e POINTS TO email....
-1
votes
1answer
312 views

How to redeliver 'Undelivered Mail Returned to Sender' in /var/spool/mail?

After changing the IP of a server that was configured as a satellite email system I missed to update mynetworks on the mail server to allow the sending of emails on behalf of the new IP address. That'...
-1
votes
1answer
261 views

Postfix + Mailq: Mailbox Full no bounce

I have a mail server and alot of clients. Some of my clients have many email accounts and dont use some of them. So, I have alot of mailboxes full, which receives dozens of emails every day. So, my ...
-1
votes
1answer
133 views

How to save addresses from bounced messages in Exim 4?

I need to save all bounces in a database, so I can query it from my application and not mail to any address that bounced more than X times. If I recall correctly, Postfix allows to pipe messages to ...
-1
votes
1answer
92 views

storing bounce notifications in database

I want to get the error code and the bounced mail when a bounce occurs. I have added content filter below bounces in master.cf and created a piping. I created a transport map in main.cf and I ...
3
votes
0answers
497 views

Exchange 2010 “Cannot send on behalf of user”

I am getting a bounceback when sending an email from another account, the error is "You can't send a message on behalf of this user unless you have permission to do so. Please make sure you're sending ...
1
vote
0answers
196 views

Not able to send mail of Hotmail with your own postfix

I purchased DigitalOcean VPS in that installing cwp.admin open source panel. Also all configuration completed like postfix,rDNS,DKIM,DMARC,SPF,DNS Settings,etc... My problem is not able to send mail ...
1
vote
0answers
60 views

Webserver to send emails from Postfix

I have a problem with my web server sending out email from websites through postfix. I have server that is running Ubuntu 12.04.5 and using Apache webserver. I have installed virtualmin on the server ...
1
vote
0answers
20 views

Email delivery status

I am trying to track an email. I use mutt so that I can edit the email headers directly before sending, and I added: X-Confirm-Reading-To: me@email Disposition-Notification-To: me@email Return-...
1
vote
0answers
380 views

SMTP error : Remote host said: 550 5.7.1 At least one FROM header address not allowed to send mail from IP ADDRESS

We are developing an email sending app, and we allow our users to specify the From: header their emails will be sent from. Let's say our domain is mydomain.com and our client domain is clientdomain....
1
vote
0answers
1k views

Rejected emails when sending from google apps to some domains (550 Unrouteable address/Sender verify failed)

i'm sending emails from my domain prokubo.com using google apps and i'm having returned emails at least when sendind to two different domains: Delivery to the following recipient failed permanently: ...
0
votes
0answers
9 views

Disable bounce messages to original sender & forward it to another address via postfix

I want configure my mail server to prevent all bounce messages to be sent back to the original sender & forward those bounce messages to the postmaster instead. (Don't want to discard all these ...
0
votes
0answers
24 views

Why wont my server receive emails from my own address, sent by Mailgun?

I'm managing a reseller Hostgator account, which runs cPanel, and I'm not sure exactly which mail daemon/server they're running. domain1.com and domain2.com are on the same account. Email addresses ...
0
votes
0answers
23 views

MessageLabs Blocking Email but Not Our Provider

My coworker and I am at a loss here. MessageLabs is blacking our client's emails from sending. However, MessageLabs isn't our anti-spam provider anymore. I checked SonicWALL to see if they're still ...
0
votes
0answers
48 views

Postfix bouncing emails submitted through pipe

I have a Postfix with a piped content filter which tries to locally deliver the messages before sending them out, resulting in a bounce notification for each event. According to the Postfix ...
0
votes
0answers
14 views

postfix outbound relay, only permit email to or from mydomains

How can I allow Postfix to: send emails from any domain to my domain, or from my domain to any domain, but reject emails from any domain to any domain. Example: mydomains = example.org, example....
0
votes
0answers
31 views

How do I configure the listener binding address for python 2.7 smtplib running in a windows environment?

I am setting up an application called openemm which uses the python 2.7 smtplib to handle smtp transactions. My outgoing mail works fine but smtplib is not responding to incoming requests on port 25 (...
0
votes
0answers
37 views

Mail spoofing or server infected

Today I received this email in my inbox. 2 IP appear in "FROM" in the body email. One of them is IP of my hosting provider. But is not the IP of my website neither from I send emails . it might be ...
0
votes
0answers
85 views

Exchange server: Why do a couple users have random numbers at the end of their “Windows domain\user name” and is this causing problems?

Background on the problem: I work for a company which is a Panasonic Partner. As a part of this program, Panasonic regularly sends out "Partner Alerts" to everyone who is signed up to receive them. We ...
0
votes
0answers
1k views

553-Message filtered - HELO Name issue?

I am having major issues sending from my SBS2011 machine to Message labs server-13.tower-134.messagelabs.com #553-Message filtered. Refer to the Troubleshooting page at 553-http://www.symanteccloud....
0
votes
0answers
459 views

migrating to new server, would like to keep sending email from existing server

Hello I'm in the process of moving my site to a new host (ie new IP). I run a social site that sends a large volume of (valid) email, and I have built up a good sending reputation with my current IP ...
0
votes
0answers
179 views

Outlook 550 5.6.0 unacceptable content

A user is using Windows 7 / Outlook 2010 SP2 with emails going through a Jerseymail POP3 setup. He is receiving a bounce back as soon as he clicks send - The following recipient(s) cannot be ...