General :: Allow Outgoing Email From Server IP / Hostname
Jun 7, 2010
How do I check/setup that only the server can send mail (maybe by IP or hostname)? I have a debian server that sends mail through the PHP mail() function with no problems. The server uses sendmail. My concern is how do I make sure only the server itself can send mails through that server. Because it would be bad if spammers would use it as a relay server.
How could we bcc all outgoing / incoming email through my Sendmail (8.14) Server? I tried this /etc/procmailrc :0c ! backupmail@domain.com But this get looped and backupmail received multiple emails of each for domain.com while sending locally from one user to another user.
I have a postfix system that sends allot of emails to customers and web site visitors. A lot of visitors just enter an invalid email in the WEB form just to download some files or do other tasks. Is it possible to BLACKLIST specific email addresses so the system does not send to those addresses? I can grep from the postfix mail log all those fake emails and place them somewhere.
I have setup mail server on Ubuntu 9.10 and it's is working fine.I am using Webmin to addministrate my mail server.My Ubuntu server name abcs.I send a test mail from Wedmin for user gom.Why it keep adding InfoNet. What I would like is setup as gom@abcs.com.
I have an ubuntu 10.04 server with hostname "abc.domain.com". However, due to migration, we had to change to hostname to something else, "xyz".
I have done changing /etc/hosts and /etc/hostname and run /etc/init.d/hostname start.
Checking the hostname and all shows it is now using hostsname of xyz. However, email sending out is still using old hostname. We have some scripts that will send out alerts like failed rsync or hdd space full to my email account. But I see the sender is still "root@abc.domain.com".
How do change that to xyz? I am using postfix. I have edited main.cf and restarted postfix but no go.
I just discovered View > "All message headers" in the Evolution email client and am quite concerned that all my out going emails contain my personal IP Address. I know that this is standard email protocol but i'm wondering if it is possible to hide or modify this header information? Or would i be better off using a webmail client?
I have CentOS 5.3 ISPConfig 3 installed. I have noticed that some mail I sent out were lost. Expecially, email with subject like "a" or "aa". I think Amavis block my email. Please tell me how to configure amavis to allow all outgoing email by postfix?
My server ended up on 1 (just 1) block list and I'm finding it very difficult to convince myself that it was just an error of some kind.Can anyone think of any giveaways at the packet or port level that some program is sending spam from my server without using the normal MTA (nothing suspicious is showing up in the sendmail logs)
I have a network of 2 WinXP machines and one linux box. I have fiddled around with the settings as you do when learning. The network is working. The network neighbourhood on the WinXP machines recognise the linux box and vice versa, (the linux Places|Network recognises the 2 WinXP). I can Ping the linux box using its hostname from a WinXp. But I cannot do the reverse. I get an 'unknown host' response. I can ping the linux to itself using its hostname.
I am looking to be able to encrypt using OpenPGP certain outgoing emails on my linux server. Currently I have GPG setup with a public key, however encryption outgoing emails prooved to be harded.After a bit of research I have found GNU Anubis which acts as a middlemad between the MUA and the MTA, by encrypting emails before they reach my MTA (Sendmail)However I am having a bit of problem with the configuration of bind and remote-mta, as specified by anubis.I have the sendmail service running on port 25 and I want to leave it there, but I have configured my php.ini SMTP port to 24. So it runs through port 24 first and anubis then forwards the emails via remote-mta to port 25Here are my anubis configs:
With all those set, I can't seem to get the basic modication of emails to work. (trying to change a certain subject to something else, just to see that anubis is working). However emails are still working with port 24 as the SMTP port.
Have someone used Linux heartbeat to send email when the Slave server becomes the Master? I've read I can configure the MailTo under.
But I really don't know how to do it. I basically need my primary server to send an email when it becomes inactive and all the activities are manage by the secondary node.
I'm attempting to send email with a PHP application I got from a textbook. Do I need to start an email server in order to get the application to work?Using SuSE 11.2
Debian 5, apache 2.2 I've got Apache up and hosting multiple sites. Each site will have a php contact me page that will simply dump an email to a fixed address. What program should i be using to accomplish this? I've used nullmailer before but that assumes you have a fixed smarthost somewhere which I don't.
Is there a way of allowing only certain domain to send e-mails to certain specific e-mail address. I am using Sendmail, and I have an alias which translate to certain members of staff within my organization. I don't expect e-mails from outside our domain to be sent to this alias e-mail address.
I have recently setup a new mail server and have simulated sending and receiving on the new email server. The new email server will replace the primary one.I would like to setup the new email server in parallel with the existing one.This way i can observe issues that might occur and be aware of what could go wrong. I want to received mail to be delivered to both mail servers at the same time.I would like to use postfix, exim i find a bit to difficult to understand.I have thought of using transport maps, the only problem is that you can only forward mail to one server at a time using transport maps.I think recipient_bcc_maps and sender_bcc_maps could work, i would just like ideas of how i can do this.
I would like to set disclaimer like content in my meral mail server, so that all the users should be able to get that content automatically in their outgoing mails.
I have a user who was getting constantly spammed so I deleted their email account but it's still coming in and trying to get delivered, how do drop all email for a specific email address?
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.
We run a service in which a customer types in a form and gets a confirmation email after submitting the form. We are on a server with no control panel. We are running CentOS 5.
When we did our testing sendmail sent mails just fine and I was able to receive them. After we went live we found that 75% of our emails are being rejected by other mail servers. Doing research is seems that the headers indicate the emails are coming from 127.0.0.1.
We need to correct this problem, as well as do everything we can to reduce the risk of our mails being marked as spam. We do not receive mail on this server, but rather send mail. We have another email server on another server for receiving mail for our domain, which is already configured with cPanel (which doesn't have a problem).
We can not use cPanel on this server because of certain security restrictions.
I know that sendmail is cryptic to configure. We are willing to switch to Exim if necessary.
As far as installing Exim, I understand it's as easy as:
m using Squid 3 for web cache and i want to use multiple outgoing ip addresses. Not 1 ip for 1 client, i want to rotate several outgoing ip addresses to the same client.
Client A --> outgoing IP A next conection Client A --> outgoing IP B and so on
i have ip's which are 1.1.1.1 and 1.1.1.2. If i log into 1.1.1.1 the outgoing ip shows up as 1.1.1.1 and if i log into 1.1.1.2 the outgoing ip still shows up as 1.1.1.1. I need to set it so that when i log into a 1.1.1.2 to shows up as 1.1.1.2 as the outgoing. Same for when i log into 1.1.1.1 it shows up as 1.1.1.1 on the outgoing end. I need to know how to set it like this. Anyhelp would be greatly appreciated. I am using my VPS as an SSH tunneling. I would to have it set up so that if i log into 1 account the ip will be x.xx.xx.1 and if i log into another account it would be x.x.xx.2 ect. I have been searching for hrs on thsi stuff and no luck at all.
Is there a way to control all email address in one server manage all email application software either win OS / MAC OS or Linux Distro. I have experience about email when the pc crashed i dont have any backup for their email data also email address.
I have a minecraft server running on a P4 box running Ubuntu server 11.04 64bit. Now would it be secure, if I allowed ufw to allow outgoing? Or would this be a huge flaw someone could exploit?
I m using sendmail-8.13.8-2.el5 along with MailScanner-4.79.11-1
i want to set a rule so that user1@mydomain.com can send only to anotherdomain.com domain. sending mail to any other domain will be rejected. can it be done by sendmail or MailScanner ??
