Tagged Questions

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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votes
0answers
24 views

Message is bounced sent via Windows Live Mail - “552 5.2.0 - automated process detected unsolicited content” [closed]

I have free email account at Yahoo with the both methods of access : POP3 and via Web I have setup POP3 access in my Windows Live Mail (WLM) for Yahoo and it works fine, but when I send a message to ...
-2
votes
0answers
20 views

Default Email Sender Address [closed]

I just checked Mail Delivery Reports in WHM to find that many emails didn't deliver because some mail servers are rejecting saying the Sender address is not a valid domain. I am sure that sab sub ...
1
vote
1answer
26 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 ...
2
votes
0answers
36 views

Why is this SPF record being reported as invalid?

I've set up my SPF record at improvedemployees.com as follows: v=spf1 a mx ptr ip4:84.40.9.177 mx ip4:84.40.9.11 ~all I've set up my SPF record at affiliatewebdesigners.com to point to using ...
0
votes
2answers
44 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
1answer
23 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 ...
-1
votes
1answer
133 views

Unexpected failure, please try later (in reply to end of DATA command)

while trying to send emails to the following address some_user@f-gs.jazztel.es i always get the following error message. Could any one tell where can i look in order to find what's going wrong? This ...
2
votes
2answers
262 views

(Postfix + Dovecot) All emails to @aol.com being deferred

I'm running a dovecot/postfix mail server on debian and am having some issues. Everything is working fine except all emails to @aol.com are being deferred. The error code gave me: "The Reverse DNS ...
-2
votes
1answer
46 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. ...
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
40 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 ...
-1
votes
1answer
116 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 ...
0
votes
1answer
98 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 ...
0
votes
0answers
29 views

Access the failing addresses within bounce_message_file in exim

We are running exim version 4.72 I'm using bounce_message_file to customize our bounce messages, like desribed in the documentation Within this bounce message template I can access various variables ...
2
votes
1answer
99 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
364 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 ...
1
vote
1answer
135 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
11 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
146 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 ...
-1
votes
1answer
3k 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 ...
-1
votes
1answer
52 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, ...
0
votes
0answers
82 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
27 views

Courier custom queuetime (bounce time) for some mails

I have a customer that wants me to deliver email on their behalf. The customer wishes for our MTA (Courier) to stop attempting delivery and bounce an email after one day. I am to deliver to the ...
-2
votes
1answer
42 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 ...
0
votes
2answers
92 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 ...
1
vote
2answers
147 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
1answer
35 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 ...
0
votes
0answers
90 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
108 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
566 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 ...
0
votes
2answers
1k 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 ...
1
vote
2answers
170 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 ...
4
votes
1answer
71 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 ...
2
votes
1answer
1k views

telnet unable to connect to remote host

I have installed postfix and devcot on one of my live servers to send bulk mail (system messages on sign-up, wrong passwords etc). I use the php_imap function to check bounces and flag those email ...
0
votes
1answer
428 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
1answer
212 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
19 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
2answers
224 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
89 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
380 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 ...
0
votes
0answers
44 views

Google Apps route AND bounce back

We have a catchall address set up and I was asked if we can, on request, look through it for for misaddressed email, for example going to mark@example.com instead of mark.hewitt@example.com ... That's ...
-1
votes
3answers
48 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 ...
-1
votes
1answer
531 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 ...
2
votes
1answer
188 views

Postfix: Resend 'hard' bounces

I had a number of messages get rejected by the recipient's mail server with a status 550 code due to an IP address blacklist. I've sorted the problem that caused the host to become blacklisted, and ...
0
votes
0answers
178 views

Qmail does not receive emails

I had this issue that I had to switch servers and I needed to have all the emails previously received to reside on the new server too. I was using kloxo on both servers. So I did a little research and ...
0
votes
1answer
310 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
22 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
133 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 ...
0
votes
1answer
143 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
1k 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 ...