Fedora :: How To 'tell' To Every External Postfix To Send On Port 587
Oct 14, 2010
my ISP block port 25. So i enable the port 587 in my postfix but every time of external ISP try send email to me, it try send on port 25. How can i "tell" to every external postfix to send me on port 587 ? Exist some configuration on DNS to this ?
I have a mail server i need it to send message via port 587 not port 25, i make some changes to my postfix server which i use and it is already successed making a telnet to 587 port like it :
I am trying to setup a simple SMTP server to relay scanned documents from a Xerox machine to email addresses. Unfortunately the Xerox machine doesn't support TSL or SSL so sending mail over port 25 on gets blocked. I have setup postfix on a desktop running Fedora 13 and have been able to set it up to forward the mail onto the correct server (gmail for example). My question is, how do I get the server to encrypt the emails (scanned documents) when sending them over the internet?
I have tried adding:
Code: smtpd_use_tls = yes smtpd_tls_cert_file = /etc/postfix/smtpd.cert smtpd_tls_key_file = /etc/postfix/smtpd.key But when I look at the wireshark capture of the sending I can read my test message in plain text.
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 have installed a sendmail server on fedora 10 I try to configure my sendmail server as a mail server to send outgoing email using port 587( because port 25 is blocked). after finishing configuring my sendmail server, i checked out my sendmail server using telnet localhost 587, and it worked fine as below code...
I have tried two different ways for user name: name, or name@mail.mydomian.com, but not working at all, the two results are the same. PS: I have test port 587 and can use port 587 and Kmail to send outgoing mail using other external relay server
is my wrong configuration for sendmail server or kmail?
I have been running an email server on a Red Hat 9 system for 5 years, and wanting to upgrade it to the latest Fedora OS. A few days ago it crashed. The server is running Fedora 11 (up-to-date). Clients are Fedora 11 and Windows XP machines using Thunderbird for accessing email. The server is running Postfix and Dovecot. Within my local network I can send and receive emails. I can also send email to addresses outside of my local network. The only problem is that I cannot receive any email from outside the local network. I cannot think of anything aside from my firewall (iptables) or postfix config that could be causing the problem.
Below are my iptables file, and the postfix main.cf changes that I have made. Iptables (the same file I was using on Red Hat version 9 with one minor deprecated syntax changed): *nat :PREROUTING ACCEPT [22:1894] :POSTROUTING ACCEPT [14:840] :OUTPUT ACCEPT [17:1356] -A POSTROUTING -o eth0 -j MASQUERADE COMMIT *filter .....
I am doing work on serial port. I want to send/receive data to/from Microcontrolar through serial port. But I don't know how to initialize, receive and send data to Serial port. i am new in fedora so i hav'nt any deep concept of fedora.can anyone send me C code , which communicate through serial port in fedora (or atleast help me). I am using Fedora 11.
I am studying Debian, the postfix service this night cannot send and recevied outside email,internal work fine, i check the log found is show "no space left device"
recently i configure postfix on my fedora core 9 system i want to send mail from one user to another till now i did not create any user, i just configure the main,cf file with the help of some link i found on internet
here is my main.cf file
# Global Postfix configuration file. This file lists only a subset # of all parameters. For the syntax, and for a complete parameter # list, see the postconf(5) manual page (command: "man 5 postconf"). # # For common configuration examples, see BASIC_CONFIGURATION_README
[Code]...
i dont know what i should write about my main.cf file so i post the whole file here.
so can anyone tell me is that the configuration is correct and and how do i create new user to my domain name and how can i send and receive mails from one user to another user using postfix
Currently i'm figuring out how to send email notifications to users when services went down in Nagios. I know i need to install and configure Postfix, which i did already. I assume that when i configured to point it to "Satellite mail system" is the correct one instead of other things like "Internet.." etc. So the configurations is when you have installed the Postfix and there would pop a lot of questions right? Other than that, what have i missed?
Oh ya, i remember something. Hmm. I do not have any so-called real smtp server so would that be alright? I heard that installed and getting the Postfix running would be enough as it serves as a MTA (mail transfer agent). So if i do not have any smtp server, the relay host= ' ' what should i put it as?
My problem is that I cannot send mail with postfix. For all mail I get connection timeout Example: (delivery temporarily suspended: connect to [URL] Connection timed out)
I'm stuck with postfix. It cannot send emails and I cannot find out why! smtpPort 25/tcp is open. I can telnet localhost with 25, but not the localhosts IP(192.168.1.15). Sendmail is OFF. Here is the main.cf file!
# See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default
I have configured Postfix on a Ubuntu 8.04 box using this tutorial:I can send emails but I cannot receive any email because of a "bad recipient address syntax:"The log from /var/log/mail.info says this:
I'm having a problem with Postfix sending email. To be more specific, Postfix sends mail perfect but when my web server running webmail (RoundCube) connects to my mail server to send email, it fails & there is nothing in the logs that explain to me why:
Code: Jan 8 11:53:02 mail dovecot: imap-login: Login: user=<carlos>, method=PLAIN, rip=192.168.0.201, lip=192.168.0.200, mpid=2161, TLS Jan 8 11:53:02 mail postfix/smtpd[2162]: connect from www.iamghost.org[192.168.0.201] Jan 8 11:53:02 mail postfix/smtpd[2162]: setting up TLS connection from www.iamghost.org[192.168.0.201] Jan 8 11:53:02 mail postfix/smtpd[2162]: Anonymous TLS connection established from
I have recently installed the ISPCP web hosting control panel. It seems that after a while running and testing I can receive but I cannot send e-mail. basically I get an error which goes
Code:
postfix/smtp[5939]: connect to alt1.gmail-smtp-in.l.google.com[72.14.213.27]:25: Connection timed out
I have, in the recent past, been able to send e-mail so I know that there is something that has gone wrong with my configuration, which I cannot. I post here my master.cf and my main.cf files as well as the mail.log file and the mail.warn....
I have a web application installed on a Debian server that sends out a lot of e-mails. Is there a way to configure Postfix to retain the messages in a queue and send all of them at midnight for example
How can I send email outside my LAN using postfix? Actually, I can received email from outside like yahoo. hotmail etc.. But when I am trying to send outside in my mail server here is the error I got..
Jun 2 21:19:51 microtontech postfix/smtp[4434]: connect to k.mx.mail.yahoo.com[98.139.54.60]: Connection timed out (port 25) Jun 2 21:20:10 microtontech postfix/smtp[4435]: connect to
[code]....
I try to telnet yahoo.com and smtp.pldtdsl.net 25 here are the result, but when I try to telnet smtp.pldtdsl.net its showing trying only.. I checked if my ISP is blocking port 25 isn't. (I forgot what is the website I used to check if my ISP port 25 is block) I try already to used in my relayhost the [URL] but the email I sent still bouncing..But I remember last time when I was installed Hmailserver in my Win2K3 machine I sent email outside but I cannot received..
I am trying to make my elastix voip server to send and receive e-mails. It has built in Postfix mail server, and i tried to configure it.I am not sure about some parameters, such as domain and hostname.Either way, i will attach my config file and the errors that i get from log and mail queue as i get them from webmin.
I'm on Ubuntu 10.04 and using Postfix 2.7 with Dovecot's SASL. The issue is when sending e-mail it takes a bit of time to send. LIke for it to get connected it takes around 15.20 seconds. How can I reduce this delay so it can be sent faster?
I have spent the last 24 hours searching the internet for an issue to resolve my problem. I have tried the verious solutions posted by people and followed endless amounts of tutorials
In the end i followed [URL] line by line
This allowed me to recieve email fine, but only send email locally.
I either get a "Relay access denied" message, or as of last night is is now "Recipient Address Rejected"
I can send emails to local accounts but not out to the world. Here are the refrences I used to set things up.
[URL]
I was able to send and receive after the "basic" setup. I added amavis-new and I am pretty sure that it stopped working then. (late nights, lots of changes/tries not 100% sure any more) Went back to basics trying to send a test email from telnet (on the server).
Code:
mail:~# telnet mail.my-server.com 25 Trying 216.240.35.89... Connected to mail.my-server.com.
I'm experimenting with with mail-servers now and I'm trying to configure postfix to send emails from one email(pop3 is gmail) to any email outside the local network. Server is Ubuntu 10.10 with the last updates.
i am trying to set up a mail server that will support users in a LAN in my school. I am using postfix on a Mandrakelinux distro.
I can send mail when I am root to the other user on my (same) machine both when in command line (mail command) and on Graphical mail client (Kmail ) but the user (sam) cannot send mail to the root account on either interfaces.
I followed the postfix configuration settings on John_Wiley_-_Redhat_Linux_Networking_and_System_Administration_3rd_Edition.
I'm trying to configure postfix to send e-mails but it is not receiving requests from networks different from its localnet (192.168.1.0/24). Iptables is like this:
Code: Chain INPUT (policy DROP) target prot opt source destination ACCEPT all -- 10.0.0.0/8 anywhere ACCEPT all -- localnet/24 anywhere ACCEPT udp -- anywhere anywhere ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
A part of main.cf is like this: Code: biff = no append_dot_mydomain = no delay_warning_time = 4h .....
I've just setup a new Ubuntu 10.04 LTS server on linode for myself. Followed an excellent instruction at: here to finish the installation of some basic stuff including postfix.
I am trying to figure out a way to send an email to my gmail address with an attachment, but cannot find how. Already confirmed that email can reach my gmail account.
In the end I have to use mutt to send the email with attachments, probably SendEmails will also do well, but I am wondering how to do the same thing in postfix from command-line?
what do I need to change in postfix/ dns to send email to one one of the email server hosted by 1and1.
I'm using zenoss to monitor system/ network and devices. I wanted to setup email notification , so I installed postfix. All works fine when I use my private account on yahoo or hotmail. but when I specify email account that is hosted by 1and1 I receive error 421. "
xxxxmyserver postfix/smtp[5399]: B0A5B22A06: to=<1and1emailaddress>, relay=mx00.1and1.co.uk[212.227.15.169]:25, delay=0.8, delays=0.04/0.02/0.62/0.12, dsn=4.0.0, status=deferred (host mx00.1and1.co.uk[212.227.15.169] said: 421 invalid sender domain 'xxxxmyserver' (misconfigured dns?) (in reply to RCPT TO command))
I am would like to configure postfix to send and receive email across Ethernet (just for now). I have two machines with postfix installed both using Ubuntu 10.04 directly connected with an ethernet cable. I have successfully configured a machine to send email to gmail, however i have been unsuccessful in having these machines send email back and forth. I have been interested in setting up a little mail server at home and have just been trying some simple projects with postfix to start with. At this moment i am using ip addresses and am not concerned with using a dns server
machine A: has a fixed ip of 10.137.202.1, hostname = mail.me.com, machine B: has a fixed ip of 10.137.202.20, hostname = mail.ubuntu.com in the /etc/hosts file I map each hostname to ip address receptively (not sure if a good idea, but at this point I have been trying everything)
So I will execute from Machine B echo "Here is a message" | mail -s 'Hello' cmd@[10.137.202.1]
I currently get from mail.log timed out while receiving the initial server greeting. I get from mail.err valid hostname or network address required in server description #[10.137.202.1]. Obviously when I run the mail command from cmd user i do not receive anything. I can receive mail from myself if from machine A, I sent an email using the command above. I would just like to send email from machine B and receive it on machine A via direct Ethernet connection. I have been through postfix documentation and have also read the postfix definitive guide and have had no luck.
Here is a recent main.cf as I have tried getting this to work (this is for machine A however, similar for B)
# Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. myorigin = /etc/mailname .....
Let me start off by saying I am experienced with computers, though my knowledge of Linux and networking is limited. I've just recently started setting up a Ubuntu 10.04 server to be a SMTP server. I've followed this guide by the letter: [URL] What I've attempted, to test the server, is the following:
telnet localhost 25 ehlo localhost
(this returns all the desired information) I then do a MAIL FROM my domain which is accepted, and try to do a RCPT TO an external mail server (gmail) to test sending an email. I am then told 'Relay Access Denied'. I'm sure that there's something fundamental that I'm either not understanding or not doing correctly. I simply want an SMTP server that can send to other domains. What do I need to do?