2
votes
0answers
34 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
42 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 ...
-1
votes
1answer
101 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
1answer
45 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
36 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
115 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
87 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
74 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
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
142 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
49 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, ...
-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
90 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
142 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
33 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
85 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
105 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
2answers
966 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 ...
4
votes
1answer
70 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
407 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
195 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 ...
1
vote
2answers
213 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 ...
0
votes
0answers
43 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
vote
0answers
174 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
173 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 ...
4
votes
1answer
130 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
142 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 ...
0
votes
0answers
67 views

Issue with Setting up Amazon SES using VPS/Ec2

So, I currently have a VPS and a EC2 instance. The VPS is a completely separate company that hosts my domain, email, etc. But, I recently pointed these to my Ec2 instance as: MX Record: The ...
2
votes
2answers
125 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 ...
-1
votes
1answer
94 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 ...
0
votes
0answers
111 views

Return-Path showing spam coming from my domain?

So I just logged into an old email address to see a ton of similar messages like the one below: To: "oliver@example.com" <oliver@example.com> Content-Transfer-Encoding: 7bit Mime-Version: 1.0 ...
0
votes
1answer
282 views

Our outgoing emails from a shared hosting provider (Bluehost) are returned because the server is listed as SPAM SERVERS

I am getting very frustrated with this web hosting provider -- Bluehost.com. We have several small business sites hosted with them. We also use email accounts provided by the Bluehost for our outgoing ...
0
votes
1answer
208 views

How to stop get returned email from email address that never sent [closed]

I am receiving tons of returned emails that I had never sent before. Is there any way to stop it? It seems that my email auto sent to some email address that block my email address.Thanks in advance.
0
votes
1answer
413 views

After changing SMTP port from 25 to 587 I can send, but now I don't receive emails

I configured Postfix, after a time I discovered I am blocked from sending emails because my network is on a blacklist (it's a dynamic IP). So, sometimes Outlook does not connect to send (still gets ...
0
votes
1answer
3k views

Gmail is blocking email from my application server

I'm getting the following in my mail logs on my app server: 550-5.7.1 [67.23.15.78] The IP you're using to send mail is not authorized to 550-5.7.1 send email directly to our servers. Please use ...
10
votes
2answers
1k views

How did spammer spoof emails with my google apps domain (it even has DKIM!)

I have been getting a lot of bounce-backs lately. I thought my google apps account has been compromised, but there is no activity on my apps account, and there is certainly no malicious user that I ...
2
votes
3answers
196 views

Email won't send

2013-01-18 10:33:04 cwd=/home/USER/public_html/clients 3 args: /usr/sbin/sendmail -t -i 2013-01-18 10:33:04 1TwDwG-00023y-Ks <= USER@host.mydomain.com U=USER P=local S=3993 ...
-1
votes
1answer
260 views

EMail is not sending

I'm running exim with a CPanel setup. However, I am checking var/log/exim_rejectlog and am not seeing a single issue going to this hotmail account. its just not listed. but the email is not going in. ...
2
votes
2answers
256 views

How to avoid email content filtering

I have an online tool that works via email. Some emails are not getting through and I discovered the "550 5.7.1" Message Rejected due to content restrictions error. Things I've discovered that can ...
2
votes
3answers
3k views

Exchange 2010 Mail Contacts get assigned internal SMTP addresses by the recipient policy

This environment has been upgraded from Exchange 2007 to a new Exchange 2010 server. There are several thousand email contacts that reside under the Federation_Contacts OU. Under the Email Addresses ...
-2
votes
3answers
459 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 ...
4
votes
1answer
330 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
1answer
1k views

How do I determine whether this email bounce is my fault?

I use Google Apps to handle email for my personal website, so I have an email address username@ellipsix.net through that, and I also have a Gmail account username@gmail.com. Now, I've been trying to ...
1
vote
1answer
290 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
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 ...
0
votes
2answers
236 views

Forwarder on reseller not forwarding mail to Gmail inbox

I have a reseller hosting account to serve my websites, but use Google Apps for email. I control the DNS on my domain name, so I have an A record pointing www traffic to my reseller account, but MX ...
2
votes
1answer
9k 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 ...