my server cannot send to external servers

Question asked by Carlos Flores - 5/25/2016 at 1:21 PM

Unanswered

my server suddenly stop to connect to external servers

13:32:52 [78446] Exception connecting to 65.55.37.88 (Id: 109)
13:32:52 [78446] System.Net.Sockets.SocketException (0x80004005): No connection could be made because the target machine actively refused it 65.55.37.88:25
13:32:52 [78446] Binding to local ip '5x.9x.6x.2xx' failed. Switched binding to primary local ip.
13:32:52 [78446] Connecting to 65.55.37.88:25 (Id: 110)
13:32:53 [78446] Exception connecting to 65.55.37.88 (Id: 110)
13:32:53 [78446] System.Net.Sockets.SocketException (0x80004005): No connection could be made because the target machine actively refused it 65.55.37.88:25
13:32:53 [78446] Connection to 65.55.37.88 failed (Id: 110)
14:27:35 [78446] Delivery started for xxxxxx@xxxxx.org at 2:27:35 PM
14:27:48 [78446] Skipping spam checks: No local recipients

i check by telnet the connection on port 25 and i get response from mail.smartertools.com 25

what can be the problem?

thanks

9 Replies

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Linda Pagillo Replied

5/25/2016 at 3:48 PM

Hi Carlos. You may want to check that your ISP is not blocking port 25. Also a few other things to check...

1.) Make sure the following ports are open on your firewall... 25, 110, 143, 443, 587, 465, 993 and 995.

2.) Make sure all of your port bindings in Smartermail are bound to the correct IP.

Please check those things first and let me know if any of these things are not the issue. Thanks!

Linda Pagillo Mail's Best Friend Email: linda.pagillo@mailsbestfriend.com Web: www.mailsbestfriend.com Authorized SmarterTools Reseller Authorized Message Sniffer Reseller

dejan dejanovic Replied

12/6/2016 at 7:22 AM

Linda,

same issue on my site.

both point 1 and 2 checked, and corrected.

Port 25 is not blocked by ISP.

dejanc

Linda Pagillo Replied

12/6/2016 at 7:37 AM

Hi Dejan. This means that no services are listening on the specified port or there is a firewall blocking connections. Can you post part of your log so I can see the exact error?

Linda Pagillo Mail's Best Friend Email: linda.pagillo@mailsbestfriend.com Web: www.mailsbestfriend.com Authorized SmarterTools Reseller Authorized Message Sniffer Reseller

Paul Blank Replied

12/6/2016 at 7:42 AM

Carlos says this: "i check by telnet the connection on port 25 and i get response from mail.smartertools.com 25"

Assuming he's running telnet from the server computer, the ISP is clearly not blocking port 25, nor is the server OS.

dejan dejanovic Replied

12/6/2016 at 11:04 AM

[2016.12.06] 00:11:26 [79001] Sending remote mail for dejanc@xrey-design.si
[2016.12.06] 00:11:26 [79001] Initiating connection to 98.138.253.109
[2016.12.06] 00:11:26 [79001] Connecting to 98.138.253.109:25 (Id: 1)
[2016.12.06] 00:11:26 [79001] Exception connecting to 98.138.253.109 (Id: 1)
[2016.12.06] 00:11:26 [79001] System.Net.Sockets.SocketException (0x80004005): The requested address is not valid in its context
[2016.12.06] 00:11:26 [79001] Binding to local ip '192.168.1.100' failed. Switched binding to primary local ip.
[2016.12.06] 00:11:26 [79001] Connecting to 98.138.253.109:25 (Id: 2)
[2016.12.06] 00:11:47 [79001] Exception connecting to 98.138.253.109 (Id: 2)
[2016.12.06] 00:11:47 [79001] System.Net.Sockets.SocketException (0x80004005): 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 98.138.253.109:25
[2016.12.06] 00:11:47 [79001] Connection to 98.138.253.109 failed (Id: 2)
[2016.12.06] 00:11:47 [79001] Bounce email written to 7079002.eml
[2016.12.06] 00:11:47 [79001] Delivery for dejanc@xrey-design.si to dejan.dejanovic@yahoo.com has completed (Bounced)
[2016.12.06] 00:11:50 [79001] Delivery finished for dejanc@xrey-design.si at 00:11:50 [id:7079001]

dejanc

dejan dejanovic Replied

12/6/2016 at 11:04 AM

And, the log has same lines even if firewall is stopped.

dejanc

Matthew Leyda Replied

12/6/2016 at 12:20 PM

dejan,
It looks like you don't have a mx record for the mail server. Most isp's wont except mail from you if there isn't a mx record or RDNS setup.

You can check the records here http://www.dnsstuff.com/tools#dnsReport|type=domain&&value=xrey-design.si

Kendra Support http://www.kendra.com support@kendra.com 425-397-7911 Junk Email filtered ISP

dejan dejanovic Replied

12/6/2016 at 12:30 PM

Understand. Will check with dns provider. Thanks for this tip.

dejanc

dejan dejanovic Replied

12/7/2016 at 7:38 AM

WORKS NOW!

Here are the steps which I was need to overview, and change again.

- double check with ISP vendor regarding their router ports. All good. (for info: my ISP router have by default open all ports if static ip available .Not sure how works at others ISP from global perspective)

- from Matthew Leyda instruction, True, somthing was wrong with MX record and DNS provider has fixed it.

The sending still not working, but was check and change next things:

- I had disable IPv6 from Domain >> Edit >> Technical tab

- from software server settings >> protocol settings >> smtp out change from static ip address to Use The Domain IP option,

and disable IPv6

finally restart services from SmarterMail left menu Manage >> Service >> check all >> Stop and

Start

and create new message. Previous failure message will be not used again as I guess are stil. holding parameters from previous mail server settings.

dejanc

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