Server :: Re-write Sender For User1 (regardless Of Host/domain) To Firstname1@first.fi?
Mar 29, 2011
I have a server which runs postfix. The same physical server is running web and mail services for several (3) domains, which I have reserved for future use (nothing serious or valuable, just freetime activities). Server "physical" address (also static IP) is myhost.domain.com. Lets say the other domains it serves are first.fi, second.net ad third.com. I can receive mails OK sent to all of these, I have added those 3 "extra" domains to the mydestination line in main.cf. Sending e-mails also works fine, but the sender is [URL].. I want the sender to be firstname@first.fi
I tried setting sender_canonical_maps = hash:/etc/postfix/sender_canonical in main.cf, and sender_canonical contains:
user1 Firstname1@first.fi
user2 Firstname2@first.fi
and I run postmap /etc/postfix/sender_canonical, and e-started postfix. But if I send e-mail as user1, the sender becomes [URl].. so it re-writed the username part, but hot the hostname/domain part. I also tried setting smtp_generic_maps = hash:/etc/postfix/generic but the results were similar. What do I need to do to re-write sender for user1 (regardless of host/domain) to Firstname1@first.fi?
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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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Apr 23, 2011
In our mail server we are taking lots of hits. In the maillog there's a hell of rejected mail like these:
Code:
I Have a script which search for the IP and block those. I'm having problem if IP block the RCPT IP's.
Instead i want to block the sender domain, like in this example, shareme.com. What's shall i modify in my script to do this?
Code:
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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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Feb 12, 2011
i am trying to write a shell script which will check my IP and domain name in rbl and inform me if it is listed.
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Jun 1, 2010
While in YAST2, everything seems to save fine except for the information in the "Host Name and Domain Server Configuration" screen. I have two servers side by side, the one works perfectly fine, the one does not. I can save the IP address and changes to DHCP and Static, but when I enter in the information for the Domain Name and Host Name, I click next, it saves, but when I go back in to it, the items I set are blank again. The boxes are not greyed out, you can type information in without error. When entering YAST, it requests the root pw which also works fine. I am not using any strange characters other than letters/numbers. I am going in to the screen by clicking network devices-->Netword Card-->Host Name and Name Server.
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Apr 14, 2010
i am trying to get postfix to relay through my isp's smtp server, but i am getting an error.Host or domain name not found. Name service error for name=mail.grandecom.net type=A: Host not found, try again...i can send mail inside my domain, but when i try to send an email to a test gmail address i find the above error in the log.
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Apr 26, 2010
I am managing a Fedora dedicated server with Plesk 9 and just recently moved the email for one of the domains on the server to Google Apps for business. Unfortunately, I cannot get email messages from the website forms to deliver to addresses on this domain. For anyone familiar with Plesk, I have disabled mail in the hosting settings by un-checking the "Activate mail service on domain" checkbox and there are no accounts in the domain. (Other readings have indicated that this should be enough to allow mail to be directed to the appropriate server). My MX records correctly point to the google apps mail server.
I'm quite comfortable with command line, but I know almost nothing about the sendmail program or its alternatives and my attempts at researching how to set up this relay has been futile. I'm pretty sure I'm using sendmail and not qmail or anything else from what the red-hat style "alternatives" symlinks point to. I've also checked the /etc/mail/access, domaintable, mailertable, sendmail.cf, virtusertable, local-host-names, sendmail.cf, and submit.cf and most of these files are empty (except the .cf files), and the sendmail.cf and submit.cf make no reference to the domain in question.
Here is the output from a sendmail test that was was not received. (Private data omitted of course).
sendmail -v xxx@yyy.com
test email from yyy.com webserver. please ignore.
xxx@yyy.com... Connecting to [127.0.0.1] via relay...
220 my.server.com ESMTP
>>> EHLO my.server.com
250-my.server.com .....
Closing connection to [127.0.0.1]
>>> QUIT
Performing the same test and sending an email to a non-hosted domain works fine.
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Jun 7, 2011
Tearing my hair out on this one a little bit, having problems sending message from web based PHP form to user inbox.I keep getting: Undelivered Mail Returned to Sender<me@mydomain.co.uk>: Host or domain name not found. Name service error for name=mydomain.co.uk type=A: Host not found.Running these commands:
$ hostname = mydomain.co.uk
$ hostname -f = mydomain.co.uk
$ postconf -n =
[code]....
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Jan 18, 2011
I have setup a home based web server to host a photo blog for myself and my friends. I will be running wordpress and possibly a phpbb3 forum. I'd like to open this to discuss server administration, server setup, and server maintenance. However, I have a pretty good start on all of those but serving a domain name to my static ip. Here my static ip is 24.10.202.144. I registered a domain through [URL]... It appears that I have the domain working to forward to my ip. However, I am still getting this output file from apache.
[code]...
I have tested the domain name across a few different computers on different ips. It works appropriately. I just want to make sure I have it set correctly on the (apache) server side of things. Then I can get more into Zone Editing etc.
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Nov 14, 2009
I have installed CentOS 5.4 machine named test.example.com (192.168.1.1)File /etc/hosts contains:127.0.0.1 test.example.com test localhost.localdomain localhostI have read that the loopback addres should not be assigned to host name,only to localhost and the host name should be assigned to 192.168.1.1, like this:127.0.0.1 localhost.localdomain localhost192.168.1.1 test.example.com testIs there any reason why it should be one or another way?
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Aug 21, 2009
I've got a home server running Ubuntu Server 9.04 and several machines running Ubuntu Desktop (9.04 and 8.04) and Windows (XP, Vista and 7). Now what I want to do is to create a domain and directory server similar in function to Windows Server w/ AD and join my other machines to the domain, but am not sure where to start. I already have file shares with Samba but now I want to setup a domain.
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Sep 8, 2009
Many of mails sent from my mail server that are in Queue;The main reason is deffered by domains like yahoo,aol,etc.but there is one more error that i keep getting and that is Host Unknown,Below is an example from mail log,The catch is,test mail sent on the same email id sent from my personal mail from the same server i.e. url was deliveredHowever,another mail containing client information sent from customercare@mycompanysdomain ended up in queue.
There are more examples of the same,around 20 domain have the same problem.
Sep 7 14:33:46 server2 sendmail[24591]: n8793jiC024589: to=<abc@xyz.fi>, delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=163672, relay=xyz.fi., dsn=5.1.2, stat=Host unknown (Name server: xyz.fi.: host not found)
Sep 7 22:09:42 server2 sendmail[6407]: n87Gdffa006403: to=<abc@def-fgh.com>, delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=152474, relay=def-fgh.com., dsn=5.1.2, stat=Host unknown (Name server: def-fgh.com.: host not found)
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May 23, 2011
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.
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Feb 23, 2011
Domain name which is registered on the DNS for an IP and the name of the host with that IP need not be the same. am i right? I mean domain name and host name need not be the same. Is this correct?
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May 4, 2011
I have a domain I have never used for some years, the registrar put some adds in it, now I have hosted and configured this domain as a VPS and have started to put files in it but when I enter the domain in the browser, it still displays the adds index of the registrar although I have my own index file in /var/www/. I thought the domain was automatically "taken over" (I do not know the correct technical expression) by the hosting company when my hosting is accepted by the host after they install a bare distro. Obviously, my expectation was incorrect and there is something else I need to do.
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Mar 24, 2010
I have a Ubuntu Server that is correctly set up and has been working for awhile. It currently has a domain (Registered by GoDaddy) and it is used as the main. I just bought another domain (From GoDaddy) and I want it to connect to the same server but a different section to host a second site completely separate from the first.
So this is how I want it to be setup:
Domain1 = /var/www/
Domain2 = /var/www/website2
When I put Domain1 in the url like www.domain1.com it will connect to /var/www/
When I put Domain2 in the url like www.domain2.com it will connect to /var/www/website2
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Jul 7, 2010
I'm running CentOS 5.4 with sendmail. My computer hostname is bob.domain.com. Whenever I would nc -v 127.0.0.1 25 into sendmail I would get bob.domain.com on the banner. Whenever I send out email the emails would be user@bob.domain.com. I wanted the email to show up as user@domain.com. So in the etc/mail/sendmail.cf file I changed the line
Code:
Dj$w.hostname.com
to this
Code:
Djhostname.com
Now when I enter sendmail I see domain.com in the banner so I know the change took place. However, when I send email using
Code:
mail -s "test" xxx@xxx.com
then email still goes out as user@bob.domain.com. What other changes do I need to make?
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Nov 26, 2010
I'm really new to this subject. Instead of purchasing hosting services from another party, what requirements are necessary to host a domain yourself, i.e.:
1. Minimal connection speed
2. Minimal hardware requirements, e.g. disc space
3. Effort to host domain and secure Slackware
4. Will an average ISP provide sufficient reliability, i.e. uptime, and bandwidth?
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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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Feb 11, 2011
After configuring sendmail in Linux I am able to send a mail once only. After that whenever I try to send a mail like this:
telnet localhost.url 25
EHLO localhost.url
MAIL To: susan@url
RCPT To: harry@localhost.url
MAIL DATA
after that whenever I press enter it gives me an error :
Sender Already Specified 503.5.2
Can anyone tell me why it gives this error and how can I remove this error by doing changes in which file and how?
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Apr 12, 2011
iam using centos5.2.configured qmail,vpopmail. while adding domain form vadddomain<domain.co.in> At first time domain folder get created in domains directory.and also postmaster user also get created by default.And also in mysql. Now the problem is after some times or rebooting system domain get erased automatic.also in /var/qmail/users/assign file domain name get erased.
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Apr 7, 2011
i had created domain but not getting domain in /var/qmail/user/assign file.also it error /home/vpopmail/bin/vdominfo abc.co.inInvalid domain name
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Apr 14, 2010
root 24527 0.3 0.3 92180 23812 ? Ss Apr13 2:30 rsync --server --sender -logDtpr . /
I found this process running, OS is RHEL 5.4 64bit.
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Jan 11, 2010
I am trying to write a script that will do a whois on a domain but only print out the email addresses and if there is not one listed than say something like "No Address on file" or something. Does anyone have any ideas on how to do that?
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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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Aug 30, 2010
I vae Ubuntu, postfix. I need to forward e-mail based on sender. Can I do it with .forward ?
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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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Jun 4, 2011
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Jun 27, 2011
i need to allow window domain controller user to use file share of linux.windows DC user can see the share file and directories of linux file server but not able to access.
below is brief--
I have a Linux machine which is on my network but not on my domain. I have configured SAMBA FILESERVER for file sharing purpose. I have a Windows XP PC which is on the domain(windows server) that I am trying to connect to a share on the Linux box. I supply my credentials but regardless of which login I use I always get Logon Failure. I have created an account on the Linux machine with the same user name and password as my domain account but so far no luck. Can I connect from a domain PC to a non-domain Linux box? Is there something else I should be checking?
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