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.
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?
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.
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.
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.
I'm using postfix to send some mail from my cloud server via a web page on my website that uses PHPmailer to do SMTP authentication. My cloud server has a dedicated IP for all inbound and outbound data. The problem I am having is that it sends roughly 75 - 100 messages successfully before it returns the following error for the remaining few hundred recipients in my list:
SMTP Error: The following recipients failed: example@example.com Mailer Error [URL] SMTP Error: The following recipients failed: example@example.com SMTP server error: 5.5.0 Sender already specified
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
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.
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.
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]
I have create distro groups in zimbra and have add member sin there. when i connect an account on mapi etc. [URL] i have create a persona in order client to send from [URL] rather than [URL] How can i restrict inside postfix to relay using [URL]?
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/ .....
We're using mutt to send out a daily email through cron. The only problem is that half the people aren't getting it, because its getting rejected as coming from an invalid address. Right now its sending out as username@localhost.localdomain.
How can I change this? I found the sendmail.cf, which I believe previous people have been editing directly, which from what I read isn't the best way to configure sendmail.
I have set up a couple of postfix servers for my domains, but the only thing I am missing now is this: How to block the public sending mail from my email to my email? I have managed it with SPF, but surely there must be a better way, that returns "relay not allowed" to the client. The SPF method costs too much, since it must make a dns request for each mail. So far, I have not gotten many of these mails, unless when testing my mailserver, but as I see it, anyone should not be allowed to send mail from abuse@mydomain.com to abuse@mydomain.com.
Somebody must have thought about this a long time ago, and there is simply that little line in main.conf that I'm missing.. My setup is this (virtual): I have a primary mx, with postfix, courier IMAP/POP3 server, a user database, and sasl via saslauthd. I also have a secondary mail server (backup mx) with no sasl auth, but with a copy of the mail users in the virtual tables, but added as relay_* users instead.
Spamassassin and SPF testing is replicated too, so most of the stuff should work, but I simply cannot find a setting in Postfix that denies someone to mail FROM my address TO my address. When mailing from my address and out in the open, they are required to authenticate, but not when using one of my my domain addresses, and also targeting my domain addresses.
As said, It is possible with a strict SPF setting, but that is at a cost for every lookup. It would be quicker for postfix to lookup the sender and the recipient in the relay/virtual tables, and deny if both addresses were in the recipient tables, and sender is not authenticated.
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.
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.
One of our clients uses a mobile client, which "helo"s with a non-resolvable hostname (which contains the correct IPv4 address in the name but does not resolve). I'd like to be able to config PERMIT "joeblow@mydomain" when the helo-names "*.mobilepool.carrier.net". Can anybody give me a hint how to do this, if it is even possible?Right now it just rejects based on not resolving the HELO name.
I'm trying to figure out how to access the local part and the domain part of an email address in postfix's main.cf. For example, myname@mydomain.net has myname as the local part and mydomain.net as the domain part.I get the whole email address with %s. I want to speed up the lookups by writing better database queries.I've had no luck finding this in the otherwise well documented postfix.
I am using Postfix on CentOS to send mail through a relayhost. The mail sends fine, but on certain clients such as the mail client on the iPhone or Windows Live Mail, the message is received with '(No Sender)' in the sender field. The Apple Mail client on the iMac works just fine.
Here is the PHP code I am using to send the mail code...
Wondering if there is a configuration setting in /etc/postfix/main.cf I can use to fix this problem. I have scoured the help files but have come up empty.
I want to redirect [url] to [url] how to do this? The only solution that came up is just redirect everything to a php file, and than ask the php file do the redirect..... I want to do it using .htaccess file instead of using PHP or CGI.
We have a apache server which have a ssl certificate like www.abc.com. We hosting a website is a online giving shop which need ssl cetificate in https. website of this is www.123.com, it will redirect tow this website owner don't want to show What can I do to achieve this ? Can I use rewrite function in apache to achieve this? How? or we need to buy any other ssl certificate for www.123.com? How can I install multiple sslcertificate in one apache server?
is there any HOWTO for configuring Webmin Postfix server with multiple postfix virtual hosts? Seems to be a tough challenge to set it up without any easy manual..
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
I recently moved over user from an old box running postfix(v 2.0.16) over to rhel 6 running postfix (v mail_version = 2.6.6). ive tried to make sure all the files are of correct permissions and that the main.cf file is configured corectly. However there is something wrong as when i run postfix: service postfix server i get no error but when checking the status:service postfix status i get: master dead but pid file exists Looking into /var/log/mailog i find this line being the issue:
