Topic: Unable to receive incoming e-mails on webmail???

[sureshande]

Hi,
I am unable to receive any incoming e-mails. But I can send outgoing e-mails properly. I have scanned the ports using portscan and I find port 25 to be open. mailserver is "mail.declinic.com". When I telnet to this from outside the network it doesnot connect to port 25. When I telnet from inside the network it connects properly.
I am running 6.0 on server and gateway mode.
Can any body help.........please......

Thanks
Suresh

[mrjhb3]

Did you scan your ports from outside of your local network to see if port 25 is opened?  If you can't telnet to 25 on the outside, is it possible that your ISP is blocking port 25?

JB

[sureshande]

Hi,

I have checked with ISP......and they checked the modem and the port 25 is open.........I have upgraded the SME from 5.0 to 6.0......the problem started after I upgraded.........previously it was fine.

thanks and regards
Suresh

[wyron]

Hi,
 mailserver is "mail.declinic.com". When I telnet to this from outside the network it doesnot connect to port 25.
Suresh

Get rid of the 'mail.'
Just mailto:adressee@declinic.com
Or try to telnet declinic.com:25
OK ?

[Anonymous]

Hi Mike,
I am using addressee@declinic.com
I have checked both with and without 'mail'..........both work out to be fine from inside the network
like
telnet mail.declinic.com 25
and telnet declinic.com 25
I am able to connect to SMTP port from inside the network........but not from outside. From outside the network, you get the following error message
""Connecting To mail.declinic.com...Could not open connection to the host, on port
25: Connect failed""

thanks
Suresh Ande

[bobk]

... I am able to connect to SMTP port from inside the network........but not from outside. From outside the network, you get the following error message
""Connecting To mail.declinic.com...Could not open connection to the host, on port
25: Connect failed""

thanks
Suresh Ande

It works fine from here.

[root@mabit01 root]# telnet mail.declinic.com 25
Trying 216.171.130.70...
Connected to mail.declinic.com.
Escape character is '^]'.
220 gateway.declinic.com mailfront ESMTP
quit
221 Good bye.
Connection closed by foreign host.
[root@mabit01 root]#
[root@mabit01 root]# ping mail.declinic.com
PING mail.declinic.com (216.171.130.70) from 203.59.17.50 : 56(84) bytes of data.
64 bytes from transedge-130-70.transedge.com (216.171.130.70): icmp_seq=1 ttl=229 time=296 ms
64 bytes from transedge-130-70.transedge.com (216.171.130.70): icmp_seq=2 ttl=229 time=290 ms

--- mail.declinic.com ping statistics ---
3 packets transmitted, 2 received, 33% loss, time 2022ms
rtt min/avg/max/mdev = 290.346/293.267/296.188/2.921 ms
[root@mabit01 root]#

I also whent to https://www.declinic.com/webmail/ and was greeted with the login screen.

[Anonymous]

Hi,

I have just fixed it. There was some misconfiguration in the DSL modem that is connected to SME Server 6.0. The IP address configured for SMTP in DSL modem is not pointing to my SME server 6.0
It is  working now.

Thanks any how,
Suresh Ande

[Anonymous]

sureshande

Hey were happy to find out it wasn't a faulty operator.

For those who may believe their ISP is blocking port
25,80 or any other port, the fact is they can't block
any ports and still provide service. What this means
is if they block aka (turn off any port) you won't
have service on that port and if that port is ie. 80
you will not be able to browse the web, that simple.
Can they block ports ie 80....... they sure can if your
running something like a porn site, they just might
turn off all your ports aka disconnect you aka divorce you totally.
What else can they do or should do.......they filter
port 25. Usually they only filter 25 outbound SMTP
by qualifying the domain to their's. That is they
check to see if outbound smtp domain matches their
domain ie. ispdomain.com. All outbound port 25
traffic must be ispdomain.com on port 25 else it
might be a spammer.
If your mydomain.com sends mail out 25 you will
more than likely be blocked because it dosn't match
ispdomain.com. This is by design to stop spammers
from using your system as a spam engine while your
working hard at playing Doom. Port 25 ISP outbound,
your inbound 25 may be filtered for spam and AV but
again not blocked, for if it was blocked you would
not receive email.

So if your filtered outbound, you can send
mail.mydomain.com out port 25 smtp using
ISPdomain.com. Then the filter will qualify
and allow outbound service.

Sometimes this fix is not desired, however will work
fine in most cases.

SME on some versions allow you to change the setting
from the server-manager under configuration > email

Delegate mail servers
 
Address of internal mail server   >>> your inbound
 
Address of Internet provider's mail server >>> your outbound

The later is the one you enter your ISPdomain.com

Port 25 you can test using this tester at Zonedit.

http://www.zonedit.com/smtp.html

The first field - enter your assigned IP from your ISP

Format xxx.xxx.xxx.xxx

This test will rule out problems with DNS and qualify
your mail server is operational.

Now try it with mydomain.com and that will
prove your DNS is being resolved and routed correctly.

Have a good day all....