Recent Questions

My Postfix server was working fine until last days but now, I can't receive emails from outside (I mean with an email of different domain name like gmail for example). I must make notice that I can send email from the server to gmail. From what I have seen, I think that issue may be my iptables rules : # iptables -L Chain INPUT (policy DROP) target prot opt source destination ACCEPT tcp -- anywhere anywhere tcp dpt:ssh ACCEPT all -- ...

I have a Borland Delphi 6.0 - 7.0 [Overlay] executable (file.exe) that I want to unpack to examine the contents. This file is from an untrusted source, I believe it to be some type of virus. Currently I have downloaded PEiD to identify the exe file as written in Borland Delphi 6.0 - 7.0. I have downloaded Sandboxie and I was planning on running PEiD unpacking tool whilst in the sandbox. PEiD states that if I choose to unpack the Delphi file that it will execute the file, obviously I don't want t...

I have 2 VPN and sometimes I should switch them very often. I decided to create .bat file which could connect to desired VPN with credentials set in this file. So I create .bat file with following code: vpncli.exe -s < 1.txt Where 1.txt contains credentials of VPN #1 which has trusted cerficate. here's what 1.txt contains: connect <vpn1.some.host> 1 <password> Where 1 goes for GROUP with number 1. The second VPN is untrusted and I have this prompt awaring me what VPN is untr...

Not a single advice i have came across helped me so far, you are my only hope guys. I registered a free certificate from startssl, and tried to install it on my postfix server. OpenSSL confirms that my private key matches the certificate, unencrypted key is chowned by Postfix user, and all other files are loading pretty well. However, whenever I either send mail, receive mail, or connect through telnet i get message in logs saying cannot get RSA private key from file /etc/postfi/ssl/mydomain.ke...

I need all the body of incoming and outgoing messages are written to the log file. How to setup Postfix to do that? ...

This is almost what I want, but maybe not quite. And something is certainly missing from the instructions because I tried that to no avail. I'm running Alpine linux in a Docker container to figure out how to actually get all my services setup. I've done: docker run --name local -it -p 2500:25 alpine sh / # apk update && apk add postfix I've changed the default main.cf to have: myhostname = test.example.com In trying to follow along with the linked post, I added submission inet n ...

I try to explain better... Actually I have a standalone mailserver (CentOS7+postfix+dovecot) that provide some mailboxes for my domains and I want to add a Backup MX. As said in lot of doc (http://www.akadia.com/services/postfix_mx_backup.html) a backup MX usually keep mails in his queue and keep try to forward them to the main MX server until it came back online. But, as I know, is not possible to easy access to these mails in order to read them when the main MX server is down (yes, I can go to...

I have a postfix gateway. It only allows emails from the outside to a list of inteal users in mydomain.com and it allow emails from my inteal mail server to go out to the inteet. There is no authentication happening on the gateway. I would like a simple way to reject any incoming emails with a from address in mydomain.com while still allowing outgoing emails from my inteal mail server (preferably only ones with a from address of mydomain.com). I already have SPF enabled but I can't make it too s...

I have just installed gnuwin32 wget and have had some issues when running it. I appear to have issues with https sites... I get a "Unable to locally verify the issuer's authority." error. I have very little knowledge of this kind of thing, searched for answers on Google and went round in circles. The sites I found had cert checkers that said my certs were OK, is it my certs or the web site that's an issue. Thanks Stevo Let's block ads! بخوانید...

I am a dovecot user. I have assigned 1000M space to one of my client. Now, if mail is sent to his email, overquota message bounces back. I checked from the server, it is only showing 300M used. I have no idea what to do? ...

According to http://www.postfix.org/BASIC_CONFIGURATION_README.html, postfix should derive $myhostname if you set myorigin = just the domain name, however I haven't found that to be the case. I did figure out that I could use the hostname -d option to set the FQDN while using a shortname in the /etc/hostname file without rebooting. Until I did that only the shortname was seen in the logs, no matter how I set the values in the postfix mail.cf file. I want to avoid changing the hostname or rebooti...

I have a couple of questions regarding postfix config. First of all I need TLS as of the perl smtp plugin mediawiki uses, forces TLS authentication. Will it work on 25? Or what's the advised port? Do I need multiple certifications for different domains? Or is it mailserver specific? Can I / Do I have to use the same certs that my webserver uses? By the way I'm at this stage: Failed to set sender: [email protected] [SMTP: Invalid response code received from server (code: 530, response: 5.7.0 Must issue a ST...

We have a simple email system that uses Postfix to forward on emails sent to our accounts to our gmail accounts. This is achieved through virtual_alias_maps in main.conf and a corresponding file that lists all the aliases. Now emails are relayed, e.g. postfix/smtp[xxxx]: xxxxxx: to=<[email protected]>, orig_to=<[email protected]> Now I want to configure the server such that we can send emails. And I don't want to set up / manage our very own full on mail server with DKIM etc. What I'd lik...

I would like to hold outgoing spam emails by checking the X-Spam-Flag header. I tried with smtp_header_checks (/^X-Spam-Flag:s+YES/ HOLD), but it doesn't allow HOLD. I don't want to discard it immediatelly, so it seems that I have to look for other solution. Any suggestions? Thanks! This entry passed through the Full-Text RSS service - if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers....

I get untrusted certificate error with opening all https sites in IE 11. I added sites to trusted sites, adjusted date and time, reset IE setting, installed sites' certificates (by click on view certificates and then install) but the problem still exists! When I open up IE and want to open a site always shows "There is a problem with this website’s security certificate" after clicking "continue to the website .." always a red error appears on address bar like the following image: https://i.stack...