Server :: Telnet To Smtp Server Is Closing Immediately?

Apr 18, 2011

I've configured postfix on my linux server. For the most part, I got everything working (IMAP, apache, etc) but for some reason, I can't get postfix to work remotely. Postfix works locally to send mail. E.g. when I telnet locally to port 25. However, when I try to telnet from outside, the connection closes almost immediately. I've looked at various configuration options and tuning enhancements but found nothing helpful. Here is my config:

Code:

main.cf:

#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

[code]....

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General :: Send A Mail By Communicating Directly With An SMTP Server In Telnet?

Jan 20, 2010

How to communicate with an SMTP server with telnet, in order to send a mail?

telnet smtp.something.somewhere 53 Trying
10.xxx.xxx.xxx...
Connected to smtp.something.somewhere.
Escape character is '^]'.

And that is as far as I got. What do I have to do after?

What do I have to write after "HELO"?

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Nov 27, 2008

I have a domain name registered in asianet.com, they provide email service also, can i use local mail server and registrar's smtp server at same time?

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Server :: Server Configuration For Small Office Server, Which Smtp, Pop Imap Server And Backup?

Apr 2, 2010

I have installed a linux server in my office to run 16 machines. Its main use will be a internal mail server but will be also running websites.

I have installed Ubuntu 9.10 server x64 and have got apache running.

I am looking for the simplest more robust solution for smtp, pop3 and imap. I have only ever used qmail before and found it a pain to configure and its getting old so I though I should probably try something new. I have not much experience with running pop3 or imap on linux so would love a suggestion on that.

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Server :: Server Status Command Output Getting Dumped To Smtp Server Instead Of A File?

May 24, 2010

I am working on linux server with below specifications.Linux EDT 2008 i686 i686 i386 GNU/LinuxWhile checking the status of the server using the command 'opmnctl status' and when server is down the output is not getting redirected to file.I m using the command as,opmnctl status > abc.txt.

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Server :: Start Postfix Server Than Immediately Maillog Is Starting To Grow

Mar 18, 2010

I am running CentOS 5.4 and Postfix. So when I start Postfix server than immediately maillog is starting to grow. And the first lines that I see in it are:

[Code]...

Server is already in several blacklists and I desperately need to do something.

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Server :: Smtp Proxy Filter To External Isp Smtp?

Jan 31, 2010

In order to have greater control over the emails sent out the company I imagined the following scenario.ScenarioDescribing in words what I need.ser sends an email to user@hotmail.com for example, using the smtp of my isp (is the internet).Before the email is sent, the firewall checks if the recipient is blocked transparent, if you are locked out rejects the email.I searched several forums and mailing lists, but did not find scenarios similar to mine.Where found situations in which the mail servers were internally in the company, which is not my case.

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Ubuntu Multimedia :: Banshee Closing Immediately With Exception?

Oct 20, 2010

When I try to open Banshee, I can see the GUI for about half a second, then it closes with "Unhandled Exception: GLib.GException: Can't recursively copy directory".I'm running Ubuntu 10.10 amd64, and had an old version of banshee installed from a few releases back (don't remember which). I deleted the banshee-1 folder in my ~/.config directly, as well as uninstalled and reinstalled with no luck. Other Mono apps (such as gnome-do) work fine.Here is the full output of "banshee --debug":

** Running Mono with --debug **
[1 Info 21:09:19.692] Running Banshee 1.7.6: [Ubuntu maverick (development branch) (linux-gnu, x86_64) @ 2010-09-18 21:00:29 UTC]

[code]....

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Red Hat :: Use Sendmail As Smtp Server Instead Of Isp Smtp Server?

Apr 6, 2011

is that my isp's smtp service is very poorso i want to configure my own smtp servr for my internal clients only for sending emails not receivingi have static ip on my router with 25 port forward i have configure sendmail on linux its working fine on local network mean its sending email on local domainnow i want to send emails on other external domains with my public ipMean user of mydomain.com should be able to send emails on all internet domains like yahoo.com, hotmail.com etc

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Server :: Sended Mail Go To Trash Folder Of Reciver Using Postfix In Smtp Server?

Nov 26, 2010

my postfix to send and recive external emails, but many recive in trash folder.Other programer say me that is need some configurations in postfix with and dovecot to work, but i dont know what!This is my first time configuring a linux server at this week.

my main.conf
sample_directory = /usr/share/doc/postfix-2.3.3/samples
readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES

[code]...

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Server :: Slackware Based SMTP Server Running Sendmail Is Having These Errors ?

Apr 7, 2011

Im not able to find good response on this from google, urgent help required.

While im looking at my smtp server log at /var/log/maillog, im having these two errors for which im unable to find the reason.

1)Could not open inline file /etc/MailScanner/reports/en/inline.sig.txt, No such file or directory

2)did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA

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Server :: Postfix Rejecting Self-signed Cert On Remote Smtp Server?

Jun 24, 2011

I've got an uber simple test mail script in php on my awesome new dev machine running Ubuntu:

PHP Code:

Unfortunately, something is preventing mail delivery. I can't tell from this error log whether it's the remote machine rejecting me or whether it's my machine rejecting the self-signed cert on the remote machine:

Code:

I'm wondering what I could change in my postfix configuration to remedy this problem.

I tried setting smtp_tls_security_level = may = may but this did not change anything.

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Jun 19, 2010

Somewhere out there there has to be someone that can help me set up my lamp server to send automated emails using my cable providers SMTP server

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Server :: Configuring Postfix With External SMTP Server?

Apr 10, 2010

I'm trying to configure Postfix with a mail server that I programmed in C. The main.cf is set in this way :

Code:
relayhost = [myMailServer.localhost]
smtp_sasl_auth_enable = no
smtp_use_tls = no
disable_dns_lookups=yes
smtp_never_send_ehlo = yes
code....

I don't know why it doesn't receive response after HELO. In fact if I debug my mail server with gdb, I can see it sends a 250 response code. Moreover, I've tested my server both with traditional mail clients, as Thunderbird, and through telnet session and it works very well.

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Server :: Need Smtp Server To Show Each Domain Name In The Headers?

Jul 3, 2010

I have a server that runs on a static IP address with many hosting accounts. I am using the IspCP to manage the different sites. When a mail is sent, the headers include the box's own domain name: [URL]. Now [URL] is no longer active, so if an email from another account: [URL] sends mail, there is possibility that this mail is rejected by the receiver, if the receiver system does rDNS.

The receiving server will check the headers smtp sent from [URL] and come up as a fake, because [URL] is no longer registered. I wonder if there is a way to make the smtp headers reflect only the domain name that sent the mail. Then if joe sends mail, the server should replace[URL] with [URL]. If this is possible, then users that send mail will not get bounced because the rDNS lookup will map [URL] to the ip and the mail will be accepted.

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Server :: Qmail Server On Redhalt 9 - SMTP Very Slow?

Apr 1, 2010

we have qmail server installed on rhl 9. it was working perfectly fine for last 1 year. suddenly it stopped accepting emails from internet. when i telnet on port 25 it takes about 90 secs to show the SMTP ready state.I have tried many things

1. stopped Reverse DNS Lookup by adding -H to qmail-smtpd/run file
2. stopped spamassing and AV
3. reverified DNS server settings in resolv.conf
4. dig is resolving dns query properly.

i also observed that when i do telnet to
telnet localhost 25 response is very quick

but when i do
telnet local_server_IP_address 25
it takes aprx 90 secs to show me SMTP ready messege.

can someone shed some light on this as what should i do next to rectify this problem..

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Server :: Send Mail From Already Exist SMTP Server?

Apr 4, 2011

I come back to everybody cause I don't find an explicit how to do this!In our internal network, I've created an email server with Postfix and Dovecot. (Just for internal domain, no needed to go outside)

But I've some server which use linux too. All are on CentOS 5.5.I would like to configure these servers to use my internal mail server for send email, and not configure sendmail or postfix on each server.

What I've to do exactly on each servers to use it? I search on the web but I don't find something very explicit

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Server :: Sendmail Relay Messages To Ext. SMTP Server?

Jan 31, 2010

I've got a server set up with Debian. The problem is that my ISP doesn't allow usage of port 25 (as I understand a lot of ISP's don't).I have PHP scripts hat use the mail() function to send e-mails through the Sendmail application.So, my question is: How can I relay messages sent to sendmail to an external SMTP server (like Google Mail, for example)? Would this be easier to do in the PHP configuration, or on the Sendmail side of things?I've used PEAR extensions in PHP to achieve this before, but scripts downloaded from the Internet generally just use the basic mail() function, and it would be a real pain to modify them all.

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Server :: Unable To Connect To Outgoing SMTP Server

Jul 12, 2011

I run my own mail server. There's only one part that isn't working and I can't seem to figure out why: sending mail from a client - in this case, Thunderbird.

I can send mail off-server just fine if I log in via telnet. I can receive email just fine with Thunderbird.

Here are my relevant configs:

/etc/postfix/main.cf:

Code:
queue_directory = /var/spool/postfix
message_size_limit = 102400000
mailbox_size_limit = 1024000000
command_directory = /usr/sbin

[Code].....

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General :: Telnet To Smtp.gmail.com 587 Not Connecting?

Aug 27, 2010

In my home we have got an internet connection which is connected to desktop machine having two network cards. One card is connected to external internet and second is used for internal LAN.

We have installed a proxy on desktop machine so that we can connect to internet through proxy. So we are not able to telnet to smtp.gmail.com 587 from laptops of internal LAN laptop installed with ubuntu and fedora.

At the same time we are able to ping smtp.gmail.com from the desktop machine which is exposed to internet.

I want to automate email through shell script using smtp.gmail.com.

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Apr 19, 2010

I have been having trouble figuring this out. I have a machine running CentOS 5 and I want to setup an SMTP server behind a router on a home broadband connection. I've read many guides but nothing too specific as to what I need to do. I want to use either sendmail or postfix, but I don't know if I should purchase an SMTP relay. If anyone could point me in the right direction it would be great. I also have bought a domain name that I want to use, but I just cant put all these pieces together as of right now.

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Fedora Networking :: Telnet To SMTP From Remote Not Working

Jul 10, 2011

I have a sendmail daemon running on Linux, I can telnet @ port 25 from local shell, however if I telnet from a remote system @ port 25, it doesn't work. There is no firewall in between.

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Server :: Telnet - While Connecting To Other Server

Feb 22, 2011

just now i installed telnet on my VPS. but while connecting to other server it gives error

# telnet 10.10.10.224 Trying 10.10.10.224... Connected to 10.10.10.224 (10.10.10.224). Escape character is '^]'. Connection closed by foreign host.

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Server :: External SMTP Server With PHP / Send An Email Using An External Server?

Feb 9, 2011

I'm rather (VERY) inexperienced when it comes to Linux, but Fedora 14 is the environment I have to use on my laptop at work, so please forgive any dumb that comes out of me.

How do I tell php to send an email with mail() using an external mail server?

The situation: I've got apache/php running a webserver on my local machine. It's for dev purposes only, and the website files I'm using are checked out from our SVN. This lets me make changes to our website while not actually changing our website.

I've come across an issue I'm fixing where I need to verify that an email is successfully getting sent out, and unfortunately, this email is sent out using php's mail(), and not our website's usual $mail object. Unfortunately, I don't have the authority to change how this sends out right now, just when it sends out.

I've been running everything fine on my machine for a month now, and haven't needed the mail stuff until now. How do I tell php to send an email using an external server?

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Dec 24, 2010

i am integrated ADS with squid and its working fine. In squid server end i have used "net ads password" to update new password for the user and it successfully updated. Issue is update not doing immediately it takes long time to update the password , even i restarted the smb and winbind services. I want to updated the password immediately in the ads server. is this possible ?

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Server :: Mail Bouncing - SMTP Error From Remote Mail Server After Initial Connection: 550 Access Denied

Aug 30, 2010

This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:

xx@xx.com
SMTP error from remote mail server after initial connection: host [URL] [ip address]: 550 Access denied...

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Mar 17, 2010

I am trying to run VNC server on a standard OpenSUSE 11.2 Gnome Desktop installation.I have done this succesfully with SLES for sometime, however, my experience with OpenSUSE 11.2 is that it doesn't work out of the box!!

I am using XP Pro VNC viewer Free Edition 4.1.2 to connect.

I have removed "localhost" from the # special IPv6 addresses in hosts. This fixes the black screen issue for me. All appears well until I disconnect and retry the connection after 5 minutes or so. Then VNC client makes the connection and then immediately disconnects. It's a no go from then on. If I reboot OpenSUSE 11.2 it works again but then reconnect fails again after the same period of time.

I am trying NX now as an alternative. However, I would much prefer to use VNC.

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Server :: Cannot Telnet To 25 But Can Do It To 22

Nov 9, 2010

I just setup a server using Ubuntu 10.04LTS Desktop edition. I am a novice in these things. I was able to setup the SSH server and it works from outside my LAN quite well. I can telnet to it also with 22. I have then setup an email server. I can do telnet to it from the server itself but from the internet it just times out.

I did netstat -nlp and it shows that it is listening to port 25. I have port forwarding for 25 enabled on the router. I cleaned up all the rules of iptables and iptables -L shows everything is accepted.

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Networking :: Turned On Query Logging On Our Name Server And Immediately Saw Repeated Queries For?

May 14, 2010

I recently turned on query logging on our name server and immediately saw repeated queries for . (dot). I've not seen this before. It looks like a really sloppy DOS. What would this return if my NS was misconfigured?

May 13 18:11:41.710 queries: info: client 91.202.63.129#56089: query: . IN NS
May 13 18:11:42.083 queries: info: client 91.202.63.129#62826: query: . IN NS
May 13 18:11:42.788 queries: info: client 91.202.63.129#13620: query: . IN NS

[code]....

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Server :: Git Push Origin Doesn't Update The Remote Repository Immediately

Jun 26, 2009

I set up a git repository on the live site of my website using git init. Then I created the same repo on my local machine using git clone command. Then I made a few changes and committed them to on my local repository. Then I tried to use git push origin alongside the ssh path to my repository on the remote machine to update my live website. However, I noticed that git-push only changes the head of my git repository on the remote machine and it doesn't change any file.

In order to update my remote repository I have to issue the following command after I use git-push.

PHP Code:

git reset --hard HEAD 

This is a two-step process for committing changes to the live site. I was wondering if it's possible to merge these two steps in one to make life a little bit easier?

Note that, I'm the only one working on this project (sometimes from my laptop, sometimes from my desktop), so I trust all the commits.

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