when im trying to send email from my domain to polish email providers onet.pl and gazeta.pl im getting bounce back message:
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:
XXX#gazeta.pl
SMTP error from remote mail server after HELO mydomain.com:
host mx.poczta.gazeta.pl [1.1.1.1]: 503 5.7.0 Error:
access denied for unknown[2.2.2.2]
I have configured ptr and mx record. Please help.
There are so many possibilities for the mail denied. Please check :
1) Your mail server IP address should not be blacklisted anywhere. You can check it from http://multirbl.valli.org/lookup/
2) Make sure that the recipient mail server listen on the port which you are using i.e. Port 25. Please check if the port 587 works. You can also try port 465 with TLS.
3) Check if any Antivirus application installed on your side causes the issue.
Related
I'm trying to configure hMailServer on my computer to be able to send email out and also receive emails. I'm not sure if I have everything set up correctly as some tests works and some others do not so I am confused.
I have already set up in the DNS of my domain these 3 MX records:
mail.example.com
smtp.example.com
imap.example.com
Each one of those records points to the domain name of my server. I am able to connect to the web server of my domain. In my router, I have forwarded ports 25, 110, 143, 465 and 587 to my local computer running the hMailServer application. When running a port check on the web, it looks like port 25, 110 and 465 are blocked, but the rest are not.
If I open my Mozilla Thunderbird mail client, I set up an account I created in hMailServer for the domain in question.
I have also allowed the hMailServer application through my Windows firewall for both the private and public networks. I did the same for the Thunderbird email client.
I can locally send emails to myself and other local domains set up in hMailServer. However, I cannot send or receive any email to/from external recipients, like to/from Gmail or Hotmail for example. I'm getting this error message:
Error Type: SMTP
Connection to recipients server failed.
Error: Host name: 1.1.1.1 (edited) message: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond
Here are the TCP/IP ports summary in hMailServer:
The second part of my question is once I can actually send and receive email to/from external domains, how would I secure the connection (SSL/TSL...)? I already have a SSL certificate for my web server (example.com and www.example.com). Do I just need to generate another one for say mail.example.com or do email servers use a different kind of certificate?
I am trying to send emails from my Odoo 10 installation. For this I have configured the outgoing mail server with Gmail SMTP as follows:
SMTP Server: smtp.gmail.com
SMTP Port: 465
Priority: 10
Connection Security: SSL/TLS
I have also configured my Gmail account to accept less secure connections from outside and when I run the test from Odoo's email configuration menu I get the following message:
Connection Test Succeeded! Everything seems properly set up!
BUT: If I try to send a real mail with Odoo I get the following error reason:
Mail Delivery Failed
Mail delivery failed via SMTP server 'localhost'.
error: 111
Connection refused
I don't know what to do, I searched for it on the internet but found nothing. Hope somebody can help me. Many thanks in advance.
From the error its clear that Odoo is trying to send emails using "SMTP server 'localhost'".
By default Odoo will create a localhost server in outgoing mail configuration menu. So you must set the "Priority" field in the form. Set the GMail server priority as "1"and localhost as "2" or any other value.
Priority: The priority of your mail server. The lower the number the
higher the priority. This will mean that the e-mail server with the
lowest number will be used the most.
I've been trying to install a Postfix server for handling mail for my domain. I found some nice tutorial and I was able to create email address and server responds correctly with telnet (imap and pop3 included, I also charge the config in Gmail and works correctly).
To handle POP3 and IMAP I have installed Courier
The problem comes when I try to send e-mails to myself (with external email address), I receive the following error code:
Action: failed
Status: 5.4.6
Diagnostic-Code: X-Postfix; mail for (servername) loops back to
myself
I reviewed my postfix mail.conf config, as in many webs they said that it could be because mydestination was not corectly configured. I have included the domain configuration and I still get the same error. (/etc/postfix/main.cf)
mydestination = mail.mydomain.com, domain.com, localhost
This is in a VPS, so the hostname is different to the domain name, I'm not sure if this can have any influence on the handling mail error.
Could someone help me to find where can the error be?
Thanks for your attention and your answers
You're probably sending mail to a recipient, with an email address in a zone which has an MX record, with its value a hostname, which resolves to the ip address of your mailserver, while this your server hasn't been told in its main.cf config file (behind mydestination), that it is referring to itself.
Therefore, your server is wondering why an attempt to send mail to - as it believes - another server results in finding that the ip address of that another server is its own ip address.
Update mydestination accordingly.
It helps to use the same hostname for MX record, for all zones your mailserver handles incoming mail for, as that keeps your mydestination manageable.
I'm trying to send an email to my IIS (6) SMTP service.
The domain mycustomer.myserver.comis added to the domains list of the SMTP service. Port 25 is open, I can telnet there.
telnet mycustomer.myserver.com 25, gives no errors, but no message either. (other mail servers do show 220).
SMTPDIAG confirms this: Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mycustomer.myserver.com.
Do I need any further configuration of my IIS SMTP to get this to work?
At this point, I do not have MX records, but I don't think that is the problem?
OK found it:
Allowed connections were restricted to localhost, as configured under Access > Connection control.
I would like like guidance regarding an issue we are having on our CentOS server.
Just recently we noticed that we cannot send emails to Hotmail.com mailboxes from our domain email. I also discovered that we're getting a lot of mail delivery failure emails in one of the inbox's that we don't use.
I've checked the mail logs and saw some suspicious activity. Unfortunately, I don't know much with regards to mail server and how they behave. Can someone shine some light on this situation and tell me if some is connecting to our SMTP server remotely and sending spam emails to various recipients? What other steps should I take to prevent this?
Here is part of the log:
2013-06-09 05:43:27 SMTP connection from [110.52.1.237]:13088 (TCP/IP connection count = 1)
2013-06-09 05:43:32 no host name found for IP address 110.52.1.237
2013-06-09 05:43:41 SMTP connection from [110.52.1.237]:13461 (TCP/IP connection count = 2)
2013-06-09 05:43:46 no host name found for IP address 110.52.1.237
2013-06-09 05:43:46 unexpected disconnection while reading SMTP command from (iem.net) [110.52.1.237]:13088
2013-06-09 05:43:55 H=(qbnngj.com) [110.52.1.237]:13461 sender verify fail for <wqnsjzyyc#qbnngj.com>: The mail server could not deliver mail to wqnsjzyyc#qbnngj.com. The account or domain may not exist, they may be blacklisted, or missing the proper dns entries.
2013-06-09 05:43:55 H=(qbnngj.com) [110.52.1.237]:13461 F=<wqnsjzyyc#qbnngj.com> rejected RCPT <support#greenXXXX.com>: Sender verify failed
2013-06-09 05:43:55 unexpected disconnection while reading SMTP command from (qbnngj.com) [110.52.1.237]:13461
As you can see above, the IP that connected to the SMTP server is from China. I have a dozen of similar connections made in the log.
I am not sure how to resolve this issue.
Any help would be appreciated.
Thank you,
Max
You have two separate problems.
Sending to Hotmail: They have a web page regarding their own private white list, and if you're not on the list, you get blocked.
Receiving delivery status notices for messages not sent: Someone is spoofing your domain in messages they're sending to others. You need to protect your domain with some authentication technology. The two most common are called "sender policy framework" and domainkeys.