Server :: Postfix Rejecting Mail From Outlook?

Mar 16, 2011

I have enforced to use the Linux /etc/passwd file to authenticate myself from Outlook, Postfix will accept mail from any IPs. However, I'm not able to send mails from my Outlook via my mail server to someone else on the Internet. Am seeing the following in Postfix's log.

Code:
Mar 11 21:07:39 production postfix/smtpd[16366]: connect from pcdxxxxx.netvigator.com[203.218.211.256]
Mar 11 21:07:39 production postfix/smtpd[16366]: NOQUEUE: reject: RCPT from pcdxxxxx.netvigator.com[203.218.211.256]: 554 5.7.1 <someone@hotmail.com>: Relay access denied; from=<mate@mydomain.com> to=<someone@hotmail.com> proto=ESMTP helo=<Windows>
Mar 11 21:07:42 production postfix/smtpd[16366]: disconnect from pcdxxxxx.netvigator.com[203.218.211.256]
Here are my Postfix settings.

[Code]...

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Server :: Postfix 2.8.2 Rejecting Some Mail With User Unknown?

Apr 22, 2011

I have this strange error - I switched from postfix 2.6.5 to 2.8.2 and I some mailservers cannot send mail to me. One of them was some sendmail server. I have virtual alias maps in mysql. It works fine for almost all server that are sending mail to me, but some of them seems to send mails as user@FQDN instead of user@virtualdomain my machine name is x49.tvujweb.cz, and mz email is kamil.horky@servis-it.net but in server logs is that user kamil.horky@x49.tvujweb.cz cannot be found in virtual alias maps.

here is my postconf:

Code:
2bounce_notice_recipient = postmaster
access_map_defer_code = 450
access_map_reject_code = 554
address_verify_cache_cleanup_interval = 12h

[Code]....

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This seems like a relatively simple question, but I haven't been able to figure it out from the documentation after a couple of hours of searching. I'm running postfix on my mail server, and the vast majority of my spam has the sender address spoofed to match the recipient address. I've got spamassassin up and running, and very little gets through that, so it's not a serious problem, but if possible I would like to be able to reject the mail before it arrives to reduce the system load.

Mail is sent locally via webmail, relaying is denied, so the only way that mail should be sent from the domain is via a connection from localhost. The basic idea I'm thinking of is if the MAIL FROM sender claims to be an address at the receiving domain, but is connected from a remote IP, the mail should be rejected.

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Actual I need to configure fetchmail and postfix in linux pc to get mail in outlook.

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Apr 4, 2011

I've read many post close to my subject regarding blacklisting incoming emails, but non of them described what I really want:How can I reject a continuously changing email from my postfix, here is what I mean:

abduooo+bncCIr7stnbBBCssufsBBoEzTHSKg@googlegroups.com
abduooo+bncCMfZgc-iExCKr-fsBBoEMzorbA@googlegroups.com
abduooo+bncCLf5kv6MHRCtmefsBBoEjYnAAQ@googlegroups.com

I think you got what I mean, the thing I've taken from the posts I've read is that I created a sender_access file hashed it and added the:smtpd_recipient_restrictions = check_sender_access hash:/etc/postfix/sender_accessto postfix main.cf configurationThe sender access file reads:abduooo*@googlegroups.com REJECTBut that didn't work, I know that there is some magical slashes and dots to be added to the sender_access, but I don't know which.

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Mar 16, 2011

I am a first timer in setting up a mail server. As I heard that Postfix is a very simple mail server to configure I decided to use it on the same server where we have our squid. It seems that it is really simple enough because immediately after configuring,I can send and receive internal e-mails and send external emails. As I replied to the external emails that I received myself I found out that all of them just landed on the mail queue and this is where my problem starts. I cannot make Postfix deliver the messages to my outlook mailbox. By the way, I am sending the emails the through outlook also.

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Server :: Postfix Rejecting Mails

May 17, 2011

I've enabled popb4smtp in my mail server. Is this because of the IP 117.58.246.10 don't have a dns record? How can I sending email from this type of Ip which don't have dns entry?. But if I enable SMTP auth I can send email form this same ip. Another thing is I can connect to port 587 from the email client to send email but can't connect to port 25.

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Server :: Postfix 2.6.5 Rejecting Email To All Recipients If One Recipient Is Bad?

Oct 6, 2010

I have an ubuntu server running postfix 2.6.5 (configured using DTC). If a user tries to send an email to more than one recipient, and one recipient address is bad, then the server returns an error and no mail is sent (even to the good addresses), rather than letting the good ones through. Error displayed by thunderbird is

Code:

"An error occurred while sending mail. The mail server responded: 5.1.1 [URL]: Recipient address rejected: User unknown in virtual mailbox table. Please check the message recipient noreply@domain.com.au and try again." and mail.log shows ...

Code:

Oct 6 20:35:08 www1 postfix/smtpd[22716]: connect from xxxxxx [xxx.xxx.xxx.xxx]
Oct 6 20:35:08 www1 postfix/smtpd[22716]: B62F92A44: client=xxxxxx [xxx.xxx.xxx.xxx], sasl_method=PLAIN, sasl_username=blake@domain.com.au

[code].....

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Software :: Postfix Server Rejecting Emails Sent From Outside Host

Jul 29, 2011

I've recently followed a guide I found online [1] and installed Postfix and Courier on my server machine. I can send emails from the server to any email address but unfortunately I can only receive emails sent from the server - it's only accepting emails sent locally from the host.

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Server :: Postfix Rejecting Self-signed Cert On Remote Smtp Server?

Jun 24, 2011

I've got an uber simple test mail script in php on my awesome new dev machine running Ubuntu:

PHP Code:

Unfortunately, something is preventing mail delivery. I can't tell from this error log whether it's the remote machine rejecting me or whether it's my machine rejecting the self-signed cert on the remote machine:

Code:

I'm wondering what I could change in my postfix configuration to remedy this problem.

I tried setting smtp_tls_security_level = may = may but this did not change anything.

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so i set out to change the default smtp port the server uses because my ISP blocks port 25 and i need the email to work in outlook. this morning i could receive email, but not send it. so i did some research and thought that i needed to edit the master.cf file in /etc/postfix/ by commenting out this line: smtp inet n - n - - smtpd -oand replace it with587 inet n - n - - smtpd (587 being the port i want to use)somewhere along the lines postfix server stopped running and now i cannot get it to start.if i try using SSH it crashes immediately and if i restart it in simple control panel nothing happens

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Server :: Ubuntu Mail Server- Ssl Certificate - Get To Be Verified On Outlook?

Jul 25, 2011

I used a self assigned certificate openssl req -new -outform PEM -out smtpd.cert -newkey rsa:2048 -nodes -keyout smtpd.key -keyform PEM -days 365 -x509 i followed configurations from th below website [URL].. On my outlook client p.c`s whenever connecting for the first it pops up a message telling mi tht my certificate on my server cannot be verified then it continues after click yes.

How do i do away with tht message other thn buying trusted certificate Or refer me to a good site with Ubuntu mail server configuration which makes uses of mysql

these are the lines in my /etc/dovecot/dovet.conf file
ssl_cert_file = /etc/ssl/certs/dovecot.pem
ssl_key_file = /etc/ssl/private/dovecot.pem

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Mar 20, 2011

I've setup my server by following a ton of goods, and it seems to work ok, but I need to start using my server for email in order to receive orders placed via my website. I've followed this guide - [URL] I followed the steps above, and tested the mail server via telnet, and all seemed to be ok. I tried sending an email via Squirrelmail, from cs@thinclientwarehouse.co.uk TO my working email simon@c1systems.co.uk, but the server returned with the following message:

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Jul 27, 2010

I have setup a postfix mailserver and it seems to be working ok, we are only using this to relay mail to our forum users. Its not being used to recieve any email only send them out to the internet.

What is the difference between the mail.log and mail.info files? Can I turn one or both off? I see alot of messages like...

Just wondering what this string of log entries means? Also I am getting duplicates in the syslog file as well.

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Aug 6, 2010

Two exchange servers internally. One is setup for example.com (192.168.1.10) and the other is setup for example2.com (192.168.1.20) Both are behind a single public IP.

I want to use postfix to sit in front of the two exchange servers. Postfix will accept mail for both domains and relay to the appropriate server. I have postfix installed with only defaults at this point.

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Nov 19, 2010

I'm running SUSE linux Server version 11. I want to configure mail server with postfix & cyrus-imap. For that, i have read many documents in Internet by i met issues. I'm running DNS in this server & it's ok Now I cannont send mail through command line.

[Code]....

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I'm running a Debian LAMP server and I am adding postfix. The initial config is working and I can send and receive mail both locally and over the WAN. The problem is that I cannot get mail delivered to the user's home directory using Maildir/. I have set the:home_mailbox = Maildir/ parameter in main.cf but mail still goes to /var/mail after Postfix reload. The system is now using Maildir/ instead of mbox but in /var/mail. I really want to get mail into the user's home directory.

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Software :: Postfix - Address Verification Is Rejecting Too Much?

Mar 24, 2011

There is a mail server formed by debian4 + postfix 2.3.8 . Some messages aren't received or take too loong to be received. Here is a example or error in mail.log:

Code:
Mar 24 10:30:42 myserver postfix/smtpd[7467]: NOQUEUE: reject: RCPT from n7b.bullet.mail.re1.yahoo.com[69.147.103.218]: 450 4.1.7 <sentto-733423426-11-134235567-myname=mydomain.com@returns.groups.yahoo.com>: Sender address rejected: unverified address: Address verification in progress; from=<sentto-733423426-11-134235567-myname=mydomain.com@returns.groups.yahoo.com> to=<myname@mydomain.com> proto=SMTP helo=<n7b.bullet.mail.re1.yahoo.com>

[Code]...

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Mar 25, 2011

I recently set up a machine with Ubuntu 10.4 LTS to help to replace an aging VAX mailserver that was the DMZ mailserver for the company I work for. I set up a default install of postfix (via apt-get) to function as a DMZ border device that routes between two internal mailservers based on subdomain aliasing via internal DNS.

The problem is that although I have installed no anti-spam or anti-virus options, mail sent to this machine from any outside source containing a password-protected zip file is being rejected with error:

552 Password protected zip file found inside of the email

At first I'd thought that possibly it was the sending mailserver issuing this error, but after further testing I found that no matter the source, any password protected zip file is immediately rejected. Being as we're in a HIPAA-sensitive environment, this has been relied upon as a backup for people to do one time encrypted file sends via email. The file in question is relatively small, and I do not have any quotas on, and the same test file sent two ways (one encrypted zip and one non-encrypted zip) caused the encrypted zip only to fail.

As stated before, I do not use any type of antivirus or antispam measures, no header or body checks have been put in place, and in the course of trying to troubleshoot this problem, have probably opened my server up more than is strictly wise. I really need to enable this feature as being unable to take encrypted zips puts the entire migration at risk.

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I am using postfix as spam Mailscanner to protect my mail server running sendmail. The problem is that when I forward an email from MailScanner mail me back with the following error:

<postmaster@localhost.@mydomain.com.>... Real domain name required for sender address (in reply to MAIL FROM command))
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[code]....

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my postfix to send and recive external emails, but many recive in trash folder.Other programer say me that is need some configurations in postfix with and dovecot to work, but i dont know what!This is my first time configuring a linux server at this week.

my main.conf
sample_directory = /usr/share/doc/postfix-2.3.3/samples
readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES

[code]...

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I did a a basic install of postfix and dovecot instead of using courier-pop and courier-imap. This is only send and receiving e-mail locally within the test network 10.7.0.X and 10.0.0.X. I used:

[URL]

my postfix.conf is;

PHP Code:

[code]....

This is the error when I send an email from a local machine on the 10.0.0.X network.

PHP Code:

Jan 20 17:05:48 testbox postfix/smtpd[2491]: warning: Illegal address syntax from unknown[10.0.0.111] in MAIL command: <test@10.0.0.112> 

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Iv setup a postfix mail server.. and setup my MX records within DNS. I configured the posfix mail server with the Mail accounts.I sent the accounts a test message. They end up in the Maildir for the user. But for some reason i cannot POP the mail server from a client. I can telnet to the SMTP server.. But cannot telnet to the POP3. Iv opened the ports in the firewall correctly. and even tried disabling the Firewall but when i try to Telnet to port 110 or POP port 110 i get an error saying "connection refused"

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Apr 4, 2010

My problem is that I cannot send mail with postfix. For all mail I get connection timeout Example: (delivery temporarily suspended: connect to [URL] Connection timed out)

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Jun 4, 2011

I'm trying to get my network set up. There is an internal network separated, by a dedicated firewall, from the DMZ. I'm trying to send mail from the internal network, using mutt, to the postfix server on the DMZ.No firewall is set up yet on the dedicated firewall(the whole network is, at the moment, protected by the border router) Mutt was installed with the smtp, pop,imap,ssl,sasl,gdbm options.

I thought the fact that it was compiled with the SMTP flag set would enable me to either send mail without an MTA on the same machine that mutt is installed on(internal network host) Or that i could just specify the path to the sendmail binary and not have to start postfix as a daemon ?I've found out that sendmail is supposed to be a postfix command. So i added:

Code:

sendmail="/usr/sbin/sendmail"
to /Users/me/.mutt/muttrc

But now when i start mutt i get an error saying:

Code:

/usr/sbin/sendmail: Unknown command

Obviously i started postfix before firing up mutt The permissions say that i should be able to execute sendmail as a normal user.But mutt isn't dealing with it, even though permissions appear to be correct.What do i need to do to get mail, from a normal user, over my LAN working(with mutt and postfix)?Once i have this working then i can get a proper domain name and configure postfix on the DMZ for SASL+TLS etc etcBTW i can send mail to postfix from internal network using

Code:

telnet serverhost 25
etc

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Jan 21, 2011

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Jul 21, 2010

I have postfix installed on 2 different boxes for 2 different domains in my network. The 2 boxes are in a single network which has a PIX firewall as the internet gateway. In the PIX the external IPs are being mapped with internal IPs of the corresponding boxes. In fact, the boxes are able to resolve the IPs of each other from the DNS. But none of them can contact each other using external IPs. They don't even ping each other with external IPs, but works fine with internal IPs. When investigated on the issue, I found that this cannot be called an issue, but this is how a network is designed (Not sure if I am right). But all the boxes can contact each other using their internal IPs.

The tweak in my mind is to specify the internal IP of the other mail server in the same network, to postfix. Is there anyway to do this?

I tried specifying the internal IP in /etc/hosts, but did not help. I came to a conclusion that postfix is not considering /etc/hosts file (Again I am not sure).

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I am running Fedora 10, Postfix and Dovecot I recently changed the password of a user using the 'passwd' command. The problem is that the user can no longer receive their email messages in Thunderbird (Authentication Error). However, they can still login using SquirrelMail and get their mail.

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