Software :: Postfix: Redirect Email Based On Sender And Recipient?
Jul 8, 2011
I'm looking for a way to redirect e-mail with postfix based on sender AND recipient. What I want: Let's say I have 3 users:
[code]....
and an external address, let`s call it [URL] sends e-mails every day to andy, mark and john Now, MARK and JOHN, need the e-mail sent by [URL], but TOM doesn't need it. Is there a way to redirect ONLY the e-mail sent to TOM from [URL], to some other address, let`s say [URL] without affecting the e-mail received by MARK and JOHN? Unfortunately using SENDER ACCESS redirects ALL e-mail from [URL]
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Nov 2, 2010
We have MS Exchange email server with postfix/amavis on FreeBSD as proxy for anti-spam and anti-virus. We use our own developed CRM and trying to implement such functionality that when CRM manager send email to CRM client or vice versa through email client like Outlook (no plugins for CRM) this message would be shown in CRM. There is already a solution to parse emails from specific emailbox and show it in CRM.
What I need is to create postfix email filter to check if sender email is in file CRM_managers_emails and recipient email is in file CRM_clients_emails then forward that email to [URL] Filter should check both incoming and outgoing messages. I will auto generate CRM_managers_emails and CRM_clients_email files containing all such emails taken from CRM database. I know i should use something like Postfix After-Queue Content Filter but most of examples are for blocking emails.
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Feb 22, 2010
block incoming email within either postfix or spamassassin when the sender equals the recipient. The manner in which our mail infrastructure is set up would preclude this from happening. Granted, we do have outside vendors that spoof our domain so we have to allow emails in with our domain as the sender/from. The vendors do not, however, utilize the same sender/recipient when sending emails.
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Aug 22, 2009
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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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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Mar 22, 2011
My company email server has been working flawlessly for the last 5+ years. Recently, one of our clients put their email server behind a firewall (an assumption on my part; details below). Ever since, email sent from within the company (192.168.xxx.xxx internal address; all computers and server is behind a NAT firewall [Netgear FVX538]) is either being sent to the client after some delay (if email is sent using Outlook) or is being deferred until the messages expire (Thunderbird, Squirrelmail, etc.). Email sent to the client from anywhere outside the company (using Thunderbird, Outlook or any other email client) is also delivered without any problems (usually after a short delay).
All other emails to the World are being sent without any problems at all (both inside and outside the company; using any email client or webmail). I did contact the client's postmaster, but the client, being a large government agency, will probably not address the problem (if it is on their side) anytime soon. I am not sure if I can do anything from my end to solve the problem. Ever since the problem with the client began, I added two statements to the postfix configuration file (smtp_pix_workaround_delay_time = 20s and smtp_pix_workaround_threshold_time = 0s); this seemed to a bit - it reduced the delay for emails sent via Outlook to a few minutes (as opposed to 30+ minutes); emails sent using Thunderbird/webmail are still being deferred.
Server details: Dual quad-core processor machine, 32 GB RAM, dual 1 gbps network, running Fedora 14 (64-bit; loosely modeled along the lines of Perfect Server (with ISPConfig2) as described on the howtoforge website). Running Postfix (v. 2.7.1), Dovecot (v. 2.0.9).
Postfix details:
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
body_checks = regexp:/etc/postfix/mbl-body-deny
broken_sasl_auth_clients = yes
command_directory = /usr/sbin
[code]....
I emailed the client's postmaster suggesting they disable smtp fixup. But still, what bothers me now is that Outlook works (both within and outside the company) while Thunderbird, webmail, etc. (used by ~90% of the users) do not. In addition, all email clients from outside the company can send email (authenticated via the company server) to the client without any problems. Is there anything I can do on my end to make non-Outlook clients work within the company (webmail is hosted on the company server; so, it would have an internal address as well)?
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May 21, 2009
I have an email server configured with postfix, dovecot, saslauthd and squirrelmail. It works great. In fact I'd even say it works too well: in squirrelmail, I can configure any sender address and my server will accept it. Message will be sent, wether the sender's address is [URL] or [URL]. Is there any way of limiting it in such way that only [URL] is accepted as sender's address?
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Aug 8, 2010
I'm testing my mail server, and sending email works fine. However, when I tried to send emails to my server from gmail, I get this log:
Code:
Aug 8 14:18:17 anbient postfix/smtpd[14228]: warning: database /etc/postfix/virtual.db is older than source file /etc/postfix/virtual
Aug 8 14:18:17 anbient postfix/smtpd[14228]: connect from mail-qy0-f169.google.com[209.85.216.169]
Aug 8 14:18:17 anbient postfix/smtpd[14228]: F3D4B1DD02C0: client=mail-qy0-f169.google.com[209.85.216.169]
Aug 8 14:18:18 anbient postfix/cleanup[9988]: F3D4B1DD02C0: message-id=<4C5EBC96.2030800@gmail.com>
Aug 8 14:18:18 anbient postfix/qmgr[9993]: F3D4B1DD02C0: from=<felipefidelix@gmail.com>, size=1982, nrcpt=1 (queue active)
Aug 8 14:18:18 anbient postfix/smtp[9995]: connect to net[174.132.240.146]:25: Connection refused
Aug 8 14:18:18 anbient postfix/smtp[9995]: F3D4B1DD02C0: to=<fidelix@net>, orig_to=<eu@felipefidelix.com>, relay=none, delay=0.15, delays=0.09/0/0.05/0, dsn=4.4.1, status=deferred (connect to net[174.132.240.146]:25: Connection refused)
And this is strange. 174.132.240.146 seems to be the web address 'net.net'. I am sure this has to be some setting in postfix, cuz its trying to deliver the email to 'fidelix@net', and that cant be right.
Here is my postconf -n output:
Code:
root@anbient:/var/mail# postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
broken_sasl_auth_clients = yes
config_directory = /etc/postfix
home_mailbox = Maildir/ .....
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Dec 28, 2010
tell postfix to send email sent to one email address to another email address. What I really need to do is tell postfix that every email sent to [URL] and [URL] be sent to [URL] I tried transport maps like this: [URL] but that did not work. I then tried canonical maps like this:
recipient_canonical file:
/^((dbsupport|helpdesk).*)thisdomain[.]com$/ admins@thatdomain.com
sender_canonical file:
/^(.*@).*thisdomain[.]com$/ ${1}thatdomain.com
but it did not work either. I am really exhausted and I need to find a solution for this one since it is my boss asking me to get this working. This is what if in /var/log/mail in box1:
Dec 28 16:10:25 box1 postfix/pickup[19291]: 54D258F726: uid=0 from=<root>
Dec 28 16:10:25 box1 postfix/cleanup[23489]: 54D258F726: message-id=<4D1A5241.mailIBZ11LRR6@box1.thisdomain.com>
[code]....
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Oct 1, 2009
I'm trying to configure our mail server to block email from a specific sender reaching a specific recipient. In other words, if one of our employees is getting harassed by a 'stalker', how would one go about blocking, at the MTA (Sendmail) level, a specific sender email address from reaching a particular users inbox? We do not want to capture the email - simply block it before it consumes server resources.The Sendmail server (MTA) is a front end to our Exchange server so no user accounts exist on the Linux server. We simply use it as a SPAM and Virus scanner then forward clean email to the Exchange server.
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Oct 30, 2009
I dont know why, but my postfix dont delivery local users, the virtual users works fine.
This is my main.cf:
When i try echo "Test" | mail -s Test root ; tail -f /var/log/maillog | grep "root" i see this error:
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Sep 4, 2009
we have a Postfix mail relay server. Not to be an open relay we use check_sender_access restriction with allowed sender domains. Is there a way how to configure postfix to accept mails from any domain for a specified recipient? Something like
Code:
if (recipient_address==host@mydomain.com) accept; We have an admin mailbox and we need it to be accessible from everywhere.
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Jan 8, 2010
I want a mail server that can relay mails to the internet using GMail and fetch the mails of different accounts into the mail server and distribute them to their respective users. I am using Postfix, Fetchmail and Dovecot. I have a PC with 3 users.I use the PC having Ubuntu 9.04 and share the internet. We all send mail and retrieve mail. We do use Evolution and Mutt sometimes. We want to send our mails with our email_ids without even logging in.
Hostname
mail.myhomepc.com
Domain
myhomepc.com
[code]....
I have created my custom certificate using SSL. I've created the Postfix's main.cf file following a tutorial on the net. Currently mails are going fine, but with our local email_ids. I want Postfix to rewrite our local email_ids with the equivalent email_id on the net.
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Sep 29, 2010
All the emails I send from my linux server end up in the recipient's spam folder....Although I have tried many howtos etc and checked all blacklists... It doesn't work...
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Aug 30, 2010
I vae Ubuntu, postfix. I need to forward e-mail based on sender. Can I do it with .forward ?
E-mail that comes from user@yahoo.com destined to user@mydomain.com to be forwarded to user@gmail.com. Other e-mail that comes from any addresse must not be forwarded.
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Dec 27, 2010
I need to have a postfix server to rewrite the sender's address. For example, if the sender is: [URL], then the recipient would receive all emails from [URL] as [URL]. I tried using the generic file and created a table out of it, but this did not work:
postmap /etc/postfix/generic
-rw-r--r-- 1 root root 9977 Dec 27 15:24 generic
-rw-r--r-- 1 root root 12288 Dec 27 15:25 generic.db
I added this line to the generic text file:
[code]....
I am running two boxes with postfix 2.3.3. and 2.1.1 respectively. Both need this configuration. I also added this line:
smtp_generic_maps = hash:/etc/postfix/generic
on the main.cf file. However, this did not work. The one running postfix 2.3.3 is on Centos 5.5, the other one is on SuSe Enterprise 9.
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Apr 14, 2010
I am trying unsuccessfully to have a more permanent fix so I can receive emails from an invalid domain. The message is 'Sender address rejected: Domain not found' in the postfix mail logs. Fair enough, there may be an A record or MX record problem there, but there is nothing I can do about this with the Sender at present. Mail *will* come through from the invalid domain if I delete
Code:
reject_unknown_sender_domain
from the list at: smtpd_recipient_restrictions in /etc/postfix/main.cf (see coded area below for full list). I have added the Domain in question as an 'OK', both by name and by IP address, to: /etc/postfix/recipient_access, then used postmap to successfully create the database which appears as: recipient_access.db
ie recipient_access (not recipient_access.db) has contents: invalid-domain-name.com OK ; the space betw is a tab space 123.456.789.012OK ; the space betw is a tab space I suspect the failure is something to do with postmap and the recipient_access.db database file created by postmap, but just cannot work this out. Running: postconf -d indicates that the hash format is the default database format
As indicated below,
Code:
check_recipient_access hash:/etc/postfix/recipient_access is listed up front in smtpd_recipient_restrictions Postfix was restarted on all occassions Everything above was done as root and permissions on the .db files are the same as other files in /etc/postfix
From /etc/postfix/main.cf:
Code:
smtpd_sasl_auth_enable=yes
smtpd_helo_required = yes
disable_vrfy_command = yes
[code]....
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Jan 29, 2010
After installing sendmail, I sent a mail for testing the mail I receive is from sender www-data and default email is www-data@dryaf-desktop. How do I change this email to something else ?
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Dec 17, 2010
I have setup up an Opensuse as a simple we/application server.It handles requests for various things and will need to send out email on occasion for things like password reset requests, information / warnings etc. etc.This is a standard OPenSuse 11.x install with defaults so it comes with Postfix as the mta.I do not want a mail server I just want to send out via my clients mail server which is hosted exchange rackspace, which simply requires SMTP auth to do so.What would be the proper way to do this so ALL e-mail send from this machine, regardless of account like WWWRun or when logged in and sending from the command line has the same sender all the time.
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Jun 17, 2010
Im trying to get postfix to filter my outgoing mail and basically drop everything that is not in my hash table.
So far I managed to get this going
Code:
Code:
Unfortunately those rules also apply to incoming messages. My goal is to disallow users on my host to change their "MAIL FROM" to anything they like and restrict them to domains I specify. I'm aware that the local part still is variable and a user of domain "foo.com" could use a email of domain "bar.com", but still some of my troubles would be solved if I get this running.
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Jul 18, 2010
Ubuntu 9.04 - recently, I have been getting a newsletter from a certain sender. If I select the mail even to delete it ( not opening it ) Evolution promptly shuts down.
So long as I don't even put the mouse cursor on the offending mails, there is no problem. Now, I am building up a nice collection of unread mails which I cannot delete.
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Dec 4, 2010
i have installed redhat 5.3 and install sendmail on it.it is working perfectly fine.my question is|:
(1) can i restrict the sender and receivers email in sendmail?eg. i want to do that i want to allow only particular email addresses to send and receive and all other will be discarded
(2) i made aliases for all user but it only receives received mail copy i want both sent and receive mail copy in aliases.
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Jan 2, 2010
This is a transcript I get emailed at least once every day, usually about 3 to 10 a day recently.
Transcript of session follows.
SMTP server: errors from unknown[ip address]
<boring stuff snipped>
In: RCPT TO: <server@my domain>
Out: 550 5.1.1 <server@my domain>: Recipient address rejected: User unknown in local recipient table
Session aborted, reason: lost connection Now I cannot seem to find anything via Google, as when I put "server@" anywhere in the string, I just get web hosting or other kroomst. The emails usually come from legit places, usually hotels. Does this mean they are sending bad emails, i.e. they have a Trojan/worm, or is this a live hack attempt?. I believe the later, as I might get upto 3 domains from the one ip address, which is always, NOT associated with the listed domain. Not causing me any issues, except I have been getting a lot recently.
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Jul 26, 2010
In my Windows environment, I use email client such as Microsoft Outlook to connect to our email server to send email with the following configuration:
Incoming server (POP3): 995 - (requires with SSL)
Outgoing server (SMTP): 465 - (use encrypted connection SSL)
[code]....
And the mail server requires user ID login and password.how do I setup a text command based email client in my Linux (Centos 5.1) to send out email through the existing email server above, which is in another machine? The email client has to be text command based because I need to use command line to send notification email from anothar application installed in my Linux (Centos 5.1) Since the email client will only be used to send email notification, I don't require setting up of an email server in my linux.
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Nov 13, 2010
how to stop Evolution adding the sender's email address, that is the one who sent it to me, in the body of the email when I forward it? I have been through the settings and help and am so far unable to find any action I can take.
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Dec 31, 2009
I have an email setup where all of the emails from our email host is downloaded to our Linux server using Fetchmail. Then some of the incoming emails are sent to an MS exchange server (server1.domain.com) using Postfix. What i want to do is to send a copy of all emails to Another server (server2.domain.com) for redundancy.Can postfix be configured to send copies out to both?
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Feb 8, 2010
I've set up an email server as per this howto: [url]
In a nutshell, it uses a combinatio of postfix, dovecot, amavis (ClamAV and SpamAssisan) and mysql.
However, with this setup, authenticated users are able to spoof outgoing message by simple changing the "from" tag.
Does anyone have any ideas on how I could implement some address mapping to users?
In this setup, postfix users are NOT system users, by are stored in the database.
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Apr 11, 2010
I was wondering if there's some web-based email application (like Zimbra) or perhaps gmail can do it I'm not sure that can handle both receiving and sending of mail from multiple email accounts.I have about 4 different email accounts with various different domains and would like to have one platform which has an inbox for each account and from which I can send mail from any of the accounts
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Jan 12, 2011
The scenario: We have an external server that runs HTTP/DB servers for out shop system. Then, there's our local, in-house infrastructure that runs a.. yeah... Exchange 2010. The shop system on the external server needs to send mails to customers (order confirmations, invoices, etc.). seing as sending them directly through the local MTA (Postfix) would cause mail delivery problems because of reverse DNS issues, i've set the Postfix MTA to act as a satellite to our in-house Exchange Server, so the Exchange sends the mail instead, giving recipient mail servers a valid reverse DNS lookup.
Now, mails sent by the (proprietary, uneditable) shop system are relayed correctly and sent to the target e-mail address. My problem is: Mails not sent by the shop system, but by our own PHP scripts which run on that same external servers, are NOT relayed properly. So the Exchange is fine with the mails sent by the shop system, but not the mails sent by our scripts. This is what i get in the mail.log: The successfully relayed mail sent by the shop system:
[Code]....
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Mar 24, 2010
I work for a auto dealership, and they have a proxy server that is provided by toyota that does nothing other than route traffic some specific sites they use in the dealership. We are looking to put a local proxy server in place to filter web traffic of virus/inappropriate content. What I am looking to do is set everyone's proxy settings to point to our server but when someone puts in the toyota sites it will redirect them to toyota's proxy server and out. I am not sure if this is possible or not.
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