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
105 views

Email server domain name best practice [closed]

Is it a good idea to use a subdomain or an entirely different domain name for sending generated emails such as registration, password reset...? So that the main domain doesn't get marked for spam. ...
-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 ...
7
votes
3answers
2k views

Should I let email bounce or send it to a blackhole?

I have a lot of unused (old, dead) accounts on my machine. Many of them receive literally thousands of emails a day, all spam. If the account was used by a person, I let the email bounce so that ...
0
votes
2answers
158 views

Catch-all email with specific exceptions on a domain [closed]

I want to set up catch-all email on a domain, but also retain the ability to except certain email accounts, such that, if an email is sent to an excepted account, it is bounced back with an "account ...
0
votes
1answer
657 views

Email appears to be sent, but never arrived (probably because of attachment size). Shouldn’t there be an error message? [closed]

A friend tried to send me an email containing a big attachment (> 30 MB). According to his email client, the email was sent successfully (it moved from Outbox to Sent folder). I never received this ...
2
votes
1answer
702 views

Maximum length of MAIL FROM address

When sending out emails with a MAIL FROM address > 81 characters I receive bounce messages from some MTAs: 501 Syntax error - Badly formatted address. (in reply to MAIL FROM command) As soon as ...
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....
1
vote
1answer
322 views

Exim should save the id of a failed message to a database (or at least pipe it to a shell script)

The Setup We are running exim version 4.72 on Debian Squeeze 6 (Squeeze) (LTS). Exim is used for outgoing emails only - it does not handle emails from other servers/domains - it only handles (...
0
votes
0answers
12 views

SMESERVER: Mail not receiving, 550 v=spf1 a -all (suddenly appeared 5/21) [duplicate]

My situation is exactly the same - SMEserver 7.51 (yes I know I need to upgrade) been running for years and I get the same spf error message back just starting Wednesday afternoon(5/21). I also tried ...
0
votes
1answer
227 views

SMESERVER: Mail not receiving, 550 v=spf1 a -all

SMESERVER install has been working find for an age then this morning "The error that the other server returned was: 550 v=spf1 a -all", can anyone 'point' me in the right direction to resolving this ...
0
votes
2answers
267 views

S/MIME certificate to minimize email bounce

I have a website hosted in a vps that sends informative emails to my clientes, maybe 20-40 emails per day. Since few weeks ago some sent emails are bouncing with the following error: This message ...
0
votes
1answer
106 views

Postfix record recipient if unable to deliver or bounced

Help would be greatly appreciated. I am not a server admin but I have been tasked with making a means of auto-removing a email recipient from the database containing a table with a list of emails, ...
3
votes
1answer
8k views

unusual rate of unsolicited mail originating from your IP address

On my server I redirect mail, arriving to in@example.com, to manager1@gmail.com and manager2@gmail.com with /etc/aliases file. Recently I got the following email in my my.email@gmail.com mailbox (...
3
votes
5answers
2k views

Best practices for mass email platform [duplicate]

I am in the process of setting up mass email service. My question is: what are the best practices to achieve maximum deliver-ability. More precisely - what should I do/know to prevent spam filters ...
3
votes
5answers
1k views

How to configure email server to send lots of transactional emails

My organization is currently outsourcing email delivery to an SMTP service provider. We're considering bringing that back in house to deliver our own emails. We send about 5k transaction emails per ...
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 ...
-2
votes
1answer
54 views

Removing non-0 priority MX records

I have MX records set up as such: 0: domain.com (runs of the webhost, really bad) 1: GOOGLE ... google I somehow accidentally added the Google Apps mx servers, btu didn't change the priority 0 ...
1
vote
2answers
307 views

If I use postfix for mail relay, so is myhostname / mydestination important?

I use postfix to relay mail to 3rd party SMTP and never sent out email directly, and of course I never receive email. So If I set myhostname / mydestination to sth like fake.mydomain.com, which ...
0
votes
2answers
1k views

How do I specify what kinds of bounces PowerMTA delivers via local DSN?

I've recently been charged with overseeing the PMTA server for a small marketing company. One of the issues they have is an abundance of 'soft bounce' emails through local DSN transactions. Is there ...
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
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 ...
1
vote
1answer
214 views

SMTPD restrictions

i'm looking for a bit of advice on Postfix restrictions configuration. I'm looking for a balanced configuration which properly rejects spam and unauthorized access retries. Lately, i've been reading ...
0
votes
1answer
4k views

ExRecipNotFound; not found after disabling / recreating mailbox in exchange - x500 not working

We had an issue with some mail boxes and I have had to recreate some user mail boxes (not a Move Request). After doing this, people can't send to the new mail boxes. I have read about the x500 record ...
1
vote
2answers
420 views

Bounced mails not reaching postfix

I have postfix and dovecot installed on a Centos 6.4 production (www.bw.co.uk) machine. The intent is to send all system and transactional messages and collect bounces. The email id's that resulted in ...
0
votes
2answers
6k views

Postfix: bouncing mail (reverse DNS issue)

I have a problem with Postfix. I get this with some email address: to=<mail@domain.tld>, relay=mail.domain.tld[IP_ADDRESS]:25, delay=3, delays=0/0/2.5/0.52, dsn=5.7.1, status=bounced (host mail....
4
votes
1answer
85 views

Where is the email bounce sent? To the @domain or to the IP that sent it?

When I send an email from noreply@mysite.com to user@yahoo.com and I use that VERP bounce format like bounce+user=yahoo.com@mysite.com Is this bounce back sent to the mail server in DNS records of ...
0
votes
1answer
1k views

Contact sender via Postfix Mailer-Daemon on “Bad recipient address syntax”

I would like Postfix to generate and contact via Mailer-Daemon the sender recipient when the following case occurs Bad recipient address syntax. I've been reading through Postfix docs but haven't ...
0
votes
5answers
7k views

SMTP Bounce Back

There is an SMTP bounce back problem when sending to clients: Subject: Mail delivery failed: returning message to sender This message was created automatically by mail delivery software. A message ...
1
vote
2answers
518 views

Postfix mailqueue “Mailbox Full”

I have a mail server with postfix, and I want to differenciate the bouncing rules. maximal_queue_lifetime = 12h bounce_queue_lifetime = 12h Ok, its 12h (maybe it should be more). But I want to ...
1
vote
1answer
680 views

Postfix: Reject reject_unknown_recipient_domain and receive instant email notification

when an email is sent to a non existing domain or recipient, i would like the sender to receive an immediate email from mailer-daemon informing the recipient does not exists. Actually, what happens ...
2
votes
0answers
24 views

“Undelivered Mail Returned to Sender” messages from Google [duplicate]

Some while back I set up a postfix server. I set the MX record for my domain name and sent a test message to one of my addresses on gmail.com. However, as the MX record change was not propagated by ...
1
vote
1answer
208 views

SMTP as SmartHost for SendMail

My general task is following: We have workable application that sends mails to the users (that are registered in this application on some actions); Mails are sending using sendmail tool; In order to ...
1
vote
2answers
1k views

Kept getting “Returned Email” but I didn't send out anything

This might have something to do with a server that I have set the root user with a forward rule to send me emails. But I am not sure and I can't figure out why... Is it possible that my server has ...
-1
votes
3answers
57 views

Can I use MX Record Configuration to send one account's email to one server and a second account's email to a different server? [closed]

For example, let's say my MX Record(s) specify: 0 server1 mydomainexample.com 1 server2 mydomainexample.com Now let's say: me@mydomainexample.com is an account on server1 and you@...
3
votes
3answers
2k views

Do out-of-office replies get sent to the return-path header?

I always thought that the return-path header was used for bounced messages, so I have my email newsletter software setup to unsubscribe anyone whose email address replies back to the return-path email ...
-1
votes
1answer
1k views

hotmail doesn't accept my emails

I have installed and configure postfix as a mail server in ubuntu 12.04. I can send emails to gmail with no problem but I can't send them to hotmail when i enter in putty dig @ns1glr.name.com ...
0
votes
1answer
768 views

Postfix: mail delivered locally, but I wanted relayhost delivery

I work at example.net :-) and my team's server is named tardis.example.net . Any mail sent to us must first go through our company's internal relay hosts. Although the messages are delivered to our ...
1
vote
1answer
32 views

Postfix doesn't accept pipe

I've tried to configure postfix to execute the script /tmp/test.sh each time the user "bounce" receives a mail. My /etc/postfix/aliases: ... bounce: "| /tmp/test.sh" ... If I send an mail to that ...
4
votes
1answer
396 views

Silently drop OUTGOING mails to us.er.n.a.me@gmail.com (more than 3 dots in username part)

With postfix-2.6.6-2.2.el6_1.x86_64 on CentOS 6.4 is there please a way to inspect OUTGOING mails and silently drop them (i.e. do not send them) if the recipient looks like us.er.n.a.me@gmail.com (i.e....
0
votes
1answer
223 views

can postfix use a backup relay in response to a 5xx error code [closed]

I'm trying to configure my postfix (2.9.6) mail server to initially try deliver messages directly to the recipient MX, then fall back to relaying through my ISP's mail server if it recieves a 5xx ...
0
votes
1answer
3k views

Postfix with relayhost - relay access denied for bounces

I have set up a Postfix Mailserver, outgoing mail is being sent through a smarthost/relayhost which requires authentification. That works great, internal clients can send to foreign recipients though ...
-1
votes
2answers
2k views

Same domain only : smtp; 5.1.0 - Unknown address error 530-'SMTP authentication is required [closed]

I have a very strange problem after moving my netwave.be domain from WebHost4Life to Arvixe. I configured several email adresses, like steven@netwave.be and sandra@netwave.be. For POP3 I can use ...
1
vote
4answers
4k views

Postfix mails bouncing for no reason

I have a Postfix server setup which works fine most of the time but between 100 - 200 mails gets deferred every day with the following errors: status=deferred (lost connection with alt1.gmail-smtp-in....
1
vote
1answer
5k views

Does Exchange keep a record of the mail it's bounced?

We've just migrated to Office 365 (from Google Apps, BTW) and due to some oversights (groups) have bounced an unknown amount of customer mail. Does Exchange log bounced mail, and better yet, can I ...
1
vote
2answers
3k views

User is getting a RESOLVER.RST.AuthRequired e-mail bounce from a customer

I've been looking all over the Internet for a solution to this issue but it seems none of the solutions fit my symptoms. I am unable to get any e-mail to a customer. His server keeps responding with ...
2
votes
2answers
315 views

MTA handling of too large emails

If an MTA receives an email that exceeds the message size limit, which bevaviour is preferred? What is the default for common mail servers? Reject the email during the SMTP session. The delivering ...
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
497 views

Postfix regex for smtpd_command_filter

Some of my users are using Gmail to send mail to our domain (The mail server for which is hosted on a CentOS 5 machine with postfix). Sometimes, but not all the time, when they do, they get a ...
0
votes
2answers
2k views

Email rejected for no rDNS by AOL despite having rDNS [duplicate]

I am having trouble while attempting to send a single email to an aol.com user. I get a rejection reply as follows: Your message did not reach some or all of the intended recipients. Sent: Wed, ...
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 ...