Fedora Servers :: Fedora 10 - Sendmail / Dovecot Relay
Jun 7, 2009
I am trying to setup sendmail on a fc10 box with dovecot running imap. I have everything configured and running on the server. For example, when I run "echo 'test' | mail -s test user@mydomain.com" or even to someuser@gmail.com, the mail goes through just fine. I can then reply from both of those accounts back to the server, no problem.
Relaying denied Cannot send mail. The SMTP server does not recognize any of the authentication methods supported by Entourage. Try changing the SMTP authentication options in Account settings or contact your network administrator.
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Sep 11, 2010
I wish to setup an email server, using sendmail and DOVECOT on F13 With no modification of the DOVECOT config file ( fresh installation ), I can see that :
service dovecot restart
shows me :
service imap stop
service imap start
In the config file, I have :
protocols = imap pops imaps pop3s
and of course, I cannot connect as pop3
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Jun 29, 2011
I've tried googling this, and am having trouble finding something that doesn't end up being dizzying or confusing.
I was wondering if anybody could provide me with a concise, conclusive answer/guide.
I have a set of servers which require redundant SMTP relay. The first two of their SMTP relays are their own SMTP servers, and as such, are not dependable in the event that their network/servers go down. Their monitoring software runs on their machines as well, and uses the SMTP servers they themselves host.
I need to set up an external SMTP relay box that they can use to relay their monitoring alerts/admin notices in the case that their mailservers go down.
I have a company exchange server with pop/imap support @ my disposal but, unfortunately, that box runs Windows and does not permit any changes to services or additional software to add for the purposes of relaying clients.
So now, I need to create a dedicated linux box that can act as a relay to send email coming from the monitoring/admin/alert software in case their first two smtp servers have gone down.
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Jul 2, 2010
My postfix is ok with receiving emails but i can send mail to my domain only [URL] When I want to send to other domains i receive this error (in the maillog):
Quote:
postfix/smtpd[14172]: NOQUEUE: reject: RCPT from 93-46-46-73.ip106.fastwebnet.it[93.46.46.73]: 554 5.7.1 <giannileggio@shoppeo.com>: Relay access denied; from=<info@sampledomain.com> to=<giannileggio@shoppeo.com> proto=ESMTP helo=<[36.234.52.97]>
it is the same via thunderbird or via telnet. This is my configuration
Quote:
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
broken_sasl_auth_clients = yes
command_directory = /usr/sbin
[code]....
I used 'sampledomain' instead of my real domain
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Jul 13, 2009
This happened during the bump from 1.1.4 to 1.2.0 (in F11), but now nobody can login into the mail server.
The strace of dovecot-auth says that it sends messages over an AF_NETLINK socket before failing. Why in the world would it do that?
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Oct 23, 2010
Last time I rebooted, sendmail & dovecot started from init and everything worked. I needed to reboot this weekend [new videocard] & yum had given me a new kernel etc.Now.2.6.34.7-56.fc13.i686 running Thunderbird - with 2 accounts chuck@otherserver.com and chuck@localhost.
The "otherserver" account works fine. Localhost won't pull in the mail.
/var/log/maillog says
dovecot: pop3-login: Login: user=<chuck>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured
dovecot: POP3(chuck): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
[code]....
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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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Apr 28, 2011
I am new to to dovecot and would like some help, so please be kind.I have one user that can send mail but not read it either by pop3 or imap.I am running Dovecot 2.0.11 on Fedora 14.
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Jul 14, 2011
I installed Postfix, Roundcube (webmail) and Dovecot. Postfix stores the e-mails in maildirs located at /home/postfix/maildir/[user]@[domain]. Now I set the mail_location configuration option in Dovecot to: mail_location = maildir:/home/postfix/maildir/%u@%d The problem I run into is logging in with [user]@[domain]. Right now I can only login with [user] (without @[domain]), which makes the mail_location invalid (no e-mails can be found). How could I configure dovecot to use the domain name as well as part of the username?
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Apr 28, 2009
I have recently set up a mail server running dovecot and everything is fine. However, I now want to retrieve the contents of 2 pop mail boxes and insert them into the IMAP structure under dovecot. I need to check for spam and sort them according to sender and recipient.
What is my best software option for retrieving the mail?
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Jul 25, 2011
For about a week now I've been seeing mass attempts to relay through postfix and login to dovecot from the same 2 addresses, none are successful due to how postfix/dovecot are configured and I wouldn't be overly worried but my isp have picked up on it and are nagging at me
What ways do people go about just dropping connection attempts from offending addresses/ranges when stuff like that happens? An ideal thing would be something that detects repeated failed attempts from a host or range and subsequently ignore/ban them, perhaps for a specified length of time, something along the lines of denyhosts and fail2ban for ssh would be great Don't know if there's anything out there or just a plain tried and trusted method anyone might use for stuff like this, if not a hint on the most appropriate way to go about it 'manually' would do
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Feb 15, 2010
I am in verse to try out setting up Sendmail Relay Box.I have 3 Machines:sender.sap.com,relay.sap.com and receiver.sap.com.All I need a user fred in sender.sap.com able to send mail to a user tom in receiver.sap.com through relay.sap.com machine.I guess that is all about relaying Correct?How can I achieve that?
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Aug 11, 2010
I have a CentOS server, and am using Sendmail to relay for various domains. However, I also need to have users send their outgoing mail via this server. I want to have them enter a username and password in Outlook, Thunderbird, etc in their smtp server settings. I currently have this set up via an Exchange server, but I cannot get it to work with Sendmail. I know little about Sendmail, and have done all the config via Webmin, which has worked fine as far as relaying domains. But even though I have added the CentOS user account for the smtp relaying, the clients mail apps give an error saying relaying denied.
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Apr 15, 2011
I'm trying to build a sendmail relay server.I am in an enclave off a large domain with a FW between us and the main domain.The FW will only allow mail communication between 1 server in our enclave and the mail server of the domain.I can send mail from our 1 server to the domain mail server, but I can't get our 1 server to accept mail from our other servers.
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May 15, 2011
I want to setup sendmail using my username and password on my ISP to be able to send out messages.This is actually true as the mylocaldomain is not a public Internet domain. Just a localdomain for our local network. However, I was expecting that to change to the username in my authinfo "myusername@myispdomain" since this account is authorized to send out email with my ISP.
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Mar 26, 2009
i have two Pc in my home , in my first pc i installed Fedora 8 and it has a ip adderss 192.168.10.1 and DNS Name client.redhat.com And in my second system i installed Rehat Enterprise Linux 5 it has a ip address 192.168.10.2 and DNS name server.redhat.com , and this is also my DNS server(192.168.10.2), and i also want to configure sendmail server on my second system and also tell me what is necessary entry should i make into my DNS forward lookup file for running sendmail server, i read lots of post
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Aug 28, 2009
I updated sendmail during a routine set of updates. I found it replaced my old sendmail with sendmail+tcpwrappers. I had to create an entry in hosts.allow as my hosts.deny was set to deny all. Never had to do this before, but I had not updated sendmail in a while. Just a heads up in case anyone else is about to perform updates.
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Jan 13, 2010
I'm running a fresh F12 server configuration install from DVD, and I'm having some issues with getting sendmail to actually function when called from a php script..
I'm using a mail() function in php run by apache. The httpd error log reports.
Httpd Error_Log
Code:
Code:
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Nov 14, 2010
I am having problem with my Sendmail Server configuration. I had configured my send mail macros and make it. but i m having problem with "dnl"..i dont know what to put in this line.my ISP's name or localhost..? I am trying to create sendmail server with my dynamic IP address. i Just want basic configuration to use sendmail.
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Oct 28, 2010
In my network I only have one machine that is configured to send email outside the network. How do I instruct my local copy of sendmail to use that server as a relay?
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Mar 18, 2009
Is anyone can help me how to setup sendmail ( Centos 5.2 ) as mail relay for Microsoft exchange. I will put the mail relay in DMZ and Mail server in Local Network.v
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Feb 18, 2009
WTF am I doing wrong with sendmail? I am trying to reverse alias a user as follows:
USER1 USER@MYDOMAIN.COM
USER1@hshlnb.hsh.com USER@MYDOMAIN.COM
That is how I have the entry in the genericstableWhen he sends mail, it comes from USER1@MYDOMAIN.COM, so I have the domain rewrite correct. The forward mapping in virtusertable works fine as well - he gets all mail redirected to the user1 account as specified.My sendmail.mc file has this:
divert(-1)dnl
include(`/usr/share/sendmail-cf/m4/cf.m4')dnl
VERSIONID(`setup for linux')dnl
[code]....
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Jun 1, 2009
I have fedora running as our email server at work using sendmail. It used to have spamassassin and MailScanner installed, but one of those died over the weekend and killed the mail server. We do not need either of these as we are using a web based spam filter now (postini), so I tried removing these. I have discovered that the mail is in the mqueue waiting for delivery to the users mailboxes. I have tried using "sendmail -q -v":
Code:
Running /var/spool/mqueue/n51Jx6Gg023820 (sequence 1 of 1174)
<abaughman@grandproductsinc.com>... Connecting to local...
<abaughman@grandproductsinc.com>... Deferred: local mailer (/usr/bin/procmail) exited with EX_TEMPFAIL
Running /var/spool/mqueue/n51JsuRe023619 (sequence 2 of 1174)
<ksullivan@grandproductsinc.com>... Connecting to local...
<ksullivan@grandproductsinc.com>... Deferred: local mailer (/usr/bin/procmail) exited with EX_TEMPFAIL .....
I do not have a procmail config file: /etc/procmailrc. I am not sure why, or what it should be, perhaps that is the problem. I guess I don't exactly know how this server runs all that well. I was able to get it up and running but never understood it enough to now find what is not working correctly.
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Sep 23, 2009
Regarding few things I am facing problem :
1. How to send one copy of that outgoing mail generated from the source. It should cc to another mail id in server's backend while mail sending.
2. I don't have any domain - internally or externally. Only have static ip, accessible from outside. Can I configure sendmail to send-receive through that ip.
3. How to transfer all mails and addressbook from exchange server to linux sendmail server.
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Oct 16, 2009
I'm running FC10, with the sendmail that was part of it in Feb 09. Anyway, Up till now I've been using the user client to do spam filtering, But I'd like to start catching the spam at the sendmail level. What are my options today? I tried searching the forums and found a bunch of threads from 2001-2006, but I figured many of the ideas are now longer vaild.
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Feb 22, 2011
I have a rather interesting issue. I have set up a home network and a fedora 14 box as a server. I am running the version of Sendmail that came with fedora 14. I wrote a PHP script that changes http access passwords(to give authorized access to the outside by multiple users) once a week and emails the users their new passwords. It also finds out my WAN IP (because it is dynamic, and I am using a Linksys router with NAT), and E-Mails users when this has changed along with the new access password. I have Sendmail set up so that it should log on to my websites mail server (smtp.example.net) and send the email through it.
The problem I am having is that I have set up my home server with an internal domain like exampledomain.home, but the wan IP reverse lookup returns xx.xxx.xxx.xxx.static.xxx.xx.charter.com, so that when my sendmail server connects to my smtp server for my website it gives "EHLO server.exampledomain.home" then my smtp server rejects it because the connecting IP (WAN IP) resolves toxxx.xxx.xxx.xxx.static.opls.la.charter.com gives a host not found error. Or it gives the error because server.exampledomain.home is obviously not a valid host name on the internet. I was hoping someone out there had some insight on how I could get around this without editing or adding any DNS entries to my websites domain. I would also like to avoid getting a static IP for my house as it is more expensive. I thought about making a dynamic DNS entry with dyndns.com and then making Sendmail use that host name. I dont know how to trick sendmail like that though.Here is a copy of my sendmail.mc (scrubbed of course).
divert(-1)dnl
dnl #
dnl # This is the sendmail macro config file for m4. If you make changes to
[code].....
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May 29, 2011
Just upgraded to F15 and I cannot seem to get the sendmail service starting at boot time.It starts and works just fine by hand after boot, so there's nothing wrong with the sendmail
configuration itself."runlevel" shows a current run level of 5 and "chkconfig" shows sendmail on for run level 5.All the other mail service (mailman, clamd, etc.) start fine.Doing "service sendmail start" after boot gets everything up and running just fine, but itsure would be nice to have it run at boot like it used to
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Jun 15, 2011
We have a sendmail server located in a DMZ that has normally been able to send SMTP traffic to whatever destination is listed in the address of any given e-mail message. A recent change in network configuration has introduced an e-mail gateway that all servers need to send smtp traffic to in order for the messages to go out to the Internet.
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Apr 21, 2010
I found 2 previous posts, one from 2005 and one from 2006. The 2005 post was not very helpful and the 2006 threads are not exactly what I was expecting. So I wanted to ask the question to be sure. I have already stood up the new fedora 12 server. The old server is also fedora 12. I need to migrate local users and sendmail mailboxes. In the past couple of years the environment was small enough to create a copy of the users and then have the users mail themselves, but I want to start migrating users/mailboxes properly.
On a unix level I am a jr admin, but I have extensive senior level experience as a windows engineer and network engineer. I do feel comfortable with using the unix command line, but usually operate the unix systems thru webmin because I am not familular with more complex commands. Ideally a software solution to migrate users and/or mailboxes from one server to another is what I am looking for, but in leiu of a software solution I still need to migrate user accounts and their mailboxes. LDAP is not in place, but if the process becomes easier with LDAP I am willing to do what is needed to set up LDAP. (I have no previous experience setting up LDAP)
I do not want to change my mail server from sendmail to different software. At least right now. Both systems are up and running. They can connect to each other via public ipv4 address' only. The new server has already been installed and configured with all the software to match the old server. How do I migrate users and sendmail mailboxes from one fedora 12 server to another fedora 12 server?
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Jan 28, 2010
I used fedora12 builded mail server uning sendmail and dovecot at my home, when I at home everything are works fine, no matter I sent email to hotmail, or hotmail sent to my mail server, but I got the problem that I can't access my home server when I at office, the error messages as below:
#telnet xxx.xxx.xxx.xxx 110
-ERR Cannot connect to POP server xxx.xxx.xxx.xxx (xxx.xxx.xxx.xxx:110), connect error 10061
#telnet xxx.xxx.xxx.xxx 25
[code]....
P.S there is no firewall between the my office and home
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