Server :: Postfix Relayhost Not Working, If Domain Hosted On Same Server, But MX Points Outside?
Jun 23, 2010
i compiled and install postfix, and i using relayhost that point to my ISP. but my "DNS server" is on the same server where is installed postfix. and there is running apache with vhosts so i have domain that hosted on same server and in zonefiles of my domain my MX records points to Google Apps, to google's MX servers. But when i try send E-mail via sendmail to mail@mydomainonsameserver.com it not deliver mail to Google Apps totally, if i try to send to another E-mail everything fine it deliver it. so finally i done research this problem in Internet. And find that need to disable deliver mail to localhost(localdelivery)as i think postfix understand that the domain point to the same server where postfix have itself. and try to deliver mail local. but zonefile MX record even the domain on same server can point to another server outside. So i disabled localdelivery in postfix. and problem not fixed
how to configure inside my postfix server for filter different subdomains using more than one relayhost. In my case I have 4 subdomains and I need to create other "test.mydomain.com" appointing to a new relayhost. This is a internal process to change the antispam appliance.
I have been following this guide (I went through it twice actually): [URL] Since bellsouth blocks port 25 (except to their smarthost) I set up postfix with the option "internet site with smarthost" (not sure if that was exact wording). The final goal of this is to set up a couple mailing lists. When I try to test it I get:
Code:
joel@themis:~$ telnet localhost 25 Trying ::1... Connected to localhost. Escape character is '^]'.
I am newbie to postfix. I added a new domain to my postfix server in the main.cf under mydestinations variable and the relay_domains file. Also, added this domain to my backend exchange server. When I send a test message from the new domain, my messages from that domain appear to be stuck in the "queue active". What does it mean when you are stuck in this queue? Does this mean that my backend email server (exchange 2003) isn't allowing messages from this new domain OR that the POSTFIX server still needs configuring.
I have a postfix relay running in RHEL 5. It serves as an SMTP server. Mail traffic is delivers to the exchange server/Active directory system that is handled by another admin. So far postfix serves [URL] I am asked if it's possible to configure the same server to relay inbound and outbound email for the domain [URL]
I'm configuring a postfix server for the company I work for and have a question about limiting access by IP address.
First off, we're not using this for SPAM. We're a manufacturing/direct marketing company and will use the email server to contact our salespeople. We do not send UCE. That said, we have had problems in the past with our legitimate email being labeled as spam by a few carriers. This email server is being setup specifically to avoid future problems on that type.
Because of the nature of our business we operate several domains. We want to be able to limit outbound email for a given domain to a single IP Address. For example, say we have have 3 domains - a.com, b.com and c.com - and 3 IP addresses - 1.2.3.1, 1.2.3.2 and 1.2.3.3. We want to set things up so that a.com can only send out email on 1.2.3.1, b.com can only send out email on 1.2.3.2 and c.com can only send out email on 1.2.3.3.
My first impulse is to set these up as virtual domains on the Postfix server but I'm not sure that's the best method. Are there alternatives? What are your recommendations for doing this?
I am looking at setting up a multiple postfix SMTP servers for a single domain. Below is my requirement, I would appreciate if someone out there could guide me to achieve this using postfix..
1. Want to setup 2 postfix SMTP Server with 1 POP3 Server.
2. Server1 will host POP3 & SMTP services for domain "metallica.one".(IP: 1.1.1.1, MX: mx1.metallica.one)
3. Server2 will host only SMTP services for domain "metallica.one" (IP: 1.1.1.2, MX: mx2.metallica.one)
4. Server1 & Server2 will be used as load balancing for sending mails. (either manual settings in email client, or auto-loadbalancing is still preferred).
5. Mail received for domain metallica.one on Server2 should be pushed/forwarded/relayed to Server1 where POP3 services are running.
6. Outgoing mails for other domains from Server2 should be sent directly to the other-domain-recipients without relaying to Server1.
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.
I am new to Linux and I am trying to set up a mail server using postfix. I have done all the configurations(hopefully correct) and all the test seems to work except 2 things.
1) Postfix is running but when I try to restart the service it always fails. I checked the /var/log folder and there are no error messages. 2) When I try sending e-mails using outlook, outlook fails to connect to my server.
I am wondering if I have done the configurations properly. I am a little confused in regards to hostname and domain name. When I do a hostname on the terminal I see the hostname that I gave my server. When I do the domainname command however, domain is none. Is it necessary to have a domain to configure postfix? I have myhostname = my.hostname.com what should my domainname = to if there is none. If I do require a domain name how to I create one? I need to be able to access e-mail from external clients.
I'm using Ubuntu Server 10.04 and I can successfully relay mail generated by php scripts through an Exchange server.What I want to do is accept incoming mail from the Internet through postfix and relay it to the Exchange server but I want all mail that is not addressed to ...@mydomain.edu to be discarded.
I have a mail server taking care of mail for my 4 domains; the first is used for virtually all mail, the second rarely used anymore, the third is virtually 100% spam the past year(?), and the fourth isn't in use (and never has been, so no spam). What I'd like to do is to reject all mail to the third domain. Right now this is what I get (I tried to send to a nonexistent address from gmail):
[code]....
Since my username (xyz@) is the same for all domains, I could (or so I hope) change the reject message to give a hint to replace [URL] with [URL] and try again.
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:
From the posts relevant to postfix I could not find the particular combination of issues I'm facing. Any pointers or references to posts will be greatly helpful. I have CentOS server running Postfix which was recently moved into my house running over TW cable (Austin RoadRunner). In Webmin -> Postfix Mail Server -> General Options - Other General Options - 'Send outgoing mail via host' (which is the relayhost) is set to:
Code:
[URL]
I expected the relay to reflect this in the log but it doesn't When I send an email I see this in /var/log/maillog
Jul 21 17:17:04 cromagnon sendmail[14853]: p6LMAjlu014853: to=ravi@pobox.com, ctladdr=root (0/0), delay=00:06:19, xdelay=00:06:18, mailer=relay, pri=30049, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with [127.0.0.1] I basically *all* mail from all domains on this server to go through the relayhost. I understand there are a million caveats but I wish someone could help me with the basics.
BTW I've also tried to set the relayhost to
Code:
[URL]
however the log still shows . . .relay=root@localhost . .
I've setup postfix using mysql tables and all works except for sending to an alias. The mysql logs show that postfix is only looking at the mailbox table for where to deliver the mail for the alias. However it is not looking in the virtual alias maps table. There are no complaints from postfix on startup to indicate that there is anything wrong, and if I send to a virtual domain listed as a relay on the server it does look up the virtual alias table... even though the domain is not hosted on the server....
So the question I have is where to look next? The mysql log shows the expected lookups from postfix EXCEPT for the virtual alias map queries.... why would it not be checking the table? Since it is not looking up the virtual alias it bounces the addresses back to sender complaining that the user doesn't exist... It does deliver to a virtal mailbox, however again it never checks the vitual alias table.... so it only delivers since there's a mailbox for it rather than needing an alias...
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.
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 got a Debian 6 Server running and it uses Postfix as MTA. I have set up 3 Domains and a catch all rule. My virtual file looks like this:alice@aaa.com alicebob@aaa.com bob@aaa.com bob@bbb.com bob@ccc.com bobIt works fine so far. Now I tried to add this line on top:something@aaa.com aliceand it did not work (mail gets delivered to the catch all address). It seems, it works ONLY if the part before the domain and the local recipient are equal. Does that make sense to anyone? What did I missconfigure
On my virtual server I had the same issue within the last three month. The postfix daemon stopped working suddenly and I don't know why. I can restart postfix normally and it's working normally for a couple of weeks until the next crash. Does anyone have the same problems with CentOS 5.6 and postfix?
I have a Ubuntu server running in my house.Server name UshaMain PC name HomeLaptop 1 Named BooLaptop 2 Names Bobevery one is running Ubuntu 9.10The server is running Bind9 and Samba and is working from any other PC i can type ping usha and it will give me teh ip address of the server.This has been working for 4 months now.I just installed PostFix and nowthe only PC that is working with i ping the name USHA "server name " Is the server.The other three pc come back with the IP address of the domain for USHA.I have removed the Postfix from the server but the DNS is still not working for the other pc on the network.Ho do I get Bind working again form the rest of the PC.
I am re setting up a server of mine running red hat enterprise Linux server 6 and I had all of this working befor but for some reason I had troubles getting sasl to work and now when I login my smtp server I get an error stating that my username or password is incorrect though I am sure I am entering both correctly. Would anyone know what could be happening? I have been spending days on the web looking for the solution and only went from sasl not working when started as a service to this. For some reason I can't use Pam with saslauthd and had to use shadow instead of which from what I hear I get to use better methods of secure authentication with smtp
On all of my xp clients no matter what the username is is I am continously getting the error saying that the profile cannot be found. I just built this domain recently and since day 1 the roaming profiles have not worked.
When i starts it for the first time,my sites getting loaded fast when requested through browser,but slows down gradually. what could be the reason, my cpu load seems ok. Because i have another site hosted through apache in the same server and its getting loaded fast. so what could be the issue.
Made an account specially for this. I have a server hosted with iWeb and obviously cant just stick the CD in and fresh install. Im looking to upgrade the entire server to 9.10 all through SSH or within 8.04's GUI all the while not having to reboot until its ready to run and configured otherwise im left with an inactive server...
I have just joined this respective forum and I have a issue with website hosted on Virtual Redhat Server. Scenario is like this I have three virtual redhat server(R1,R2,R3) 5.0 on VMware workstation 7.0 installed on window 7(physical machine), on R1 I have DNS server , On R2 I have Apache web server and I have hosted a website called "geekgadget.com" just for testing purpose, R3 is just a normal server nothing installed on it yet..
Problem : I can access my website [URL] from all of my three virtual redhat server but when I try to access it from some of my physical XP,window 7 machines as well as from virtual XP machine present on my local LAN, website cannot be accessed so I am not getting the point why it happens because I checked that my port 80 is listening.
