601 Failed to connect to the recipients mail server

Question asked by Grant Boshoff - 2/10/2015 at 3:34 PM

Unanswered

Hello! Email to a certain domain is failing with the error:

Failed Recipient: [redacted]@powerprosinc.com
Reason: Remote host said: 601 Failed to connect to the recipients mail server.  No MX records were found for the 'powerprosinc.com' domain.
Status: 544 5.4.4 Host not found (not in DNS).Attempted to send the message to the following ip's:
67.192.54.254

The domain doesn't have an MX record, but SmarterMail appears to attempt to send to the primary A record (as it should).

The IP if the domain does have port 25 open as it should.

Any ideas on the reason for the bounces? Your help is appreciated.

7 Replies

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Joe Wolf Replied

2/10/2015 at 8:33 PM

I sent a test message to postmaster@powerprosinc.com and it went right thru. What version of SmarterMail are you using?

Thanks, -Joe

Grant Boshoff Replied

2/11/2015 at 9:38 AM

SmarterMail 13.1 is the version we have installed currently.

piotr Replied

6/22/2017 at 8:08 AM

For each outside email I have the same error:

12:28:03 [69152] Failed to connect to the recipients mail server. No MX records were found for the 'gmail.com' domain. Failing over to A records.
12:28:03 [69152] Initiating connection to 216.58.214.101
12:28:03 [69152] Connecting to 216.58.214.101:25 (Id: 1)
12:28:24 [69152] Exception connecting to 216.58.214.101 (Id: 1)
12:28:24 [69152] System.Net.Sockets.SocketException (0x80004005): An attempt was made to access a socket in a way forbidden by its access permissions 216.58.214.101:25
at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.Sockets.Socket.Connect(EndPoint remoteEP)
at RelayServer.Clients.SMTP.ClientConnectionSync.Connect(Int32 connectionId)
12:28:24 [69152] Connection to 216.58.214.101 failed (Id: 1)

Can anybody help me or suggest anything forward ?

Even I pointed on Google DNS so for sure DNS is not the reason.

User Replied

6/22/2017 at 10:27 AM

Did you restart the SM service after pointing the DNS to Google's DNS servers? Sometimes a restart is required. Also, make sure port 25 is not being blocked on your server going outbound. I had this issue once when my server provider blocked the port.

piotr Replied

6/22/2017 at 12:11 PM

I checked everything and still no result. I have also Plesk installed and before SM was defined as email server. Now I cannot make it so I turned off email server configuration on Plesk. The funny thing is that I can receive any mail but still cannot send it out.
Any idea ???

piotr Replied

6/22/2017 at 3:22 PM

I install new server and new SmarterMail (version 16, previous was 15.6) and again I have the same problem.

Each outbound email fail because this:

"Failed to connect to the recipients mail server. No MX records were found for the 'gmail.com' domain. Failing over to A records."

This is example for gmail.com but even I pointed on Google DNS I'v got the same error.

What's going on ?????

Employee Replied

6/22/2017 at 3:44 PM

Employee Post

Hello piotr. I would recommend opening a support ticket so that we can get on to the server and look into what is happening here.

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