How Do I Know If A Server Supports Smtp

rapco

Dec 26 2004, 06:11 AM

How do i know if my hosting server allows me to use SMTP....

The thing is I use XOOPS (my cms).. so, i haven't been able to send messages to mail inboxes through the page..... my guess is.. something about the server.. how can i test it?

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jipman

Dec 26 2004, 09:42 AM

Try port scanning the server on port 25, if it's open, it's really likely that there's a smtp server running. OR, try this, make a php script like this:

<?php
mail ('yourmailadress@foo.org','test subject','this is a test');
?>

if you get a mail smtp works.

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cryptwizard

Dec 26 2004, 11:18 AM

Yes, the easiest way is to scan port 25.
Open a command prompt and type:

CODE

telnet <host> 25

If you get a nice message like:

CODE

220-panda.unixbsd.info ESMTP Exim 4.43 #1 Sun, 26 Dec 2004 03:17:49 -0800
220-We do not authorize the use of this system to transport unsolicited,
220 and/or bulk e-mail.

Then you have SMTP.

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rapco

Dec 26 2004, 03:17 PM

hummm... ok, i'll do the port 25 test.. but...

where do i have to do what!!!?????

i don't think i have telnet... is there any way to do it from a DOS promt????

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jipman

Dec 26 2004, 03:27 PM

everyone has telnet
it comes with every windoze release

just get a dos prompt and type 'telnet'

that should do it

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rapco

Dec 26 2004, 03:49 PM

I tried typing:

Microsoft Tenet>astahost.com 25
Microsoft Tenet>telnet astahost.com 25
Microsoft Tenet>ns1.astahost.com 25
Microsoft Tenet>telnet ns1.astahost.com 25

it didn't work... i would write the message.. but is in spanish.. (Comando no valido, escriba ?/ para obtener ayuda)

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jipman

Dec 26 2004, 05:15 PM

ehm dude
do this

telnet

o

<youraccount>.astahost.com 25

o means open connection... read the HELP

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cryptwizard

Dec 26 2004, 08:04 PM

You simply go to a DOS prompt and type "telnet <host> port".
You needn't see the words Microsoft Telnet.

I'll give you a full demonstration of me sending a message to myself:

CODE

C:\Documents and Settings\user>telnet gsmtp171.google.com 25

220 mx.gmail.com ESMTP 59si1198747rnb
HELO gmail.com
250 mx.gmail.com at your service
MAIL FROM:<cryptwizard@gmail.com>
250 2.1.0 OK
RCPT TO:<cryptwizard@gmail.com>
250 2.1.5 OK
DATA
354 Go ahead
To: Myself <cryptwizard@gmail.com>
From: Myself <cryptwizard@gmail.com>
Subject: Testing SMTP from Telnet

Hello World!
.
250 2.0.0 OK 1104091397
QUIT
221 2.0.0 mx.gmail.com closing connection

Line 1: The command you type in the DOS prompt (You get to the DOS prompt by typing "cmd" in a run box).
Line 2: -
Line 3: Welcome message from the SMTP server. The numeric response 220 means ready.
Line 4: Introuducing my server (You would not type gmail.com here, you would type your own host, that was just an example).
Line 5: The numeric response 250 means the command was OK.
Line 6 foward: Sending the message.

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rapco

Dec 26 2004, 09:27 PM

ok, i can get an aswer for kaiseren.superihost.com for ex: (that's one my hosts)..

but when i try

rapco.astahost.com it says it can connect.. taht mean asatahost doesn't have SMTP ???????????????

oh, how can i configure my smtp in my cms using the kaiseren.superihost.com ??????

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NilsC

Dec 26 2004, 10:49 PM

QUOTE (rapco @ Dec 26 2004, 05:27 PM)

First, you seem to have an user account / email address rapco-AT-kaiseren-dot-superihost-dot-com. Query the mx record for kaiseren.superihost.com returns:

CODE

Host Preference IP(s) [Country]
mail.superihost.com. 10 70.84.255.163 [US]70.84.255.162 [US]

This is like having a yahoo account that you can download the messages using pop3, read with webmail or use an IMAP host to read the messages. But you don't run the mailserver (I may be wrong on that one I didn't do a dig)

Your MX record would look something like this if you host your own mail server:
mail.kaiseren.superihost.com. 15 70.84.255.163 [US]70.84.255.162 [US]

Now looking at your MX record for astahost.com I can't se any. Did you create a MX record yet?

When did your DNS record get created? I don't see it propagate to any nameservers yet!
Same for the MX record.

CODE

Getting MX record for rapco.astahost.com... Received an NXDOMAIN response.

This means that the rapco.astahost.com domain does not exist! No mail can be sent to it.

To verify that astahost creates (or user creates) records I looked up a username that had asked for hosting a while back and I tested his DNS and MX records. They came back positive.

Here is what astahosts nameservers replied when I queried them directly:

CODE

C:\dig>dig rapco.astahost.com @ns1.astahost.com

; <<>> DiG 9.2.3 <<>> rapco.astahost.com @ns1.astahost.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;rapco.astahost.com. IN A

;; ANSWER SECTION:
rapco.astahost.com. 14400 IN A 69.50.168.69

;; AUTHORITY SECTION:
rapco.astahost.com. 14400 IN NS ns2.astahost.com.
rapco.astahost.com. 14400 IN NS ns1.astahost.com.

;; ADDITIONAL SECTION:
ns1.astahost.com. 14400 IN A 64.5.44.113
ns2.astahost.com. 14400 IN A 209.152.167.59

;; Query time: 78 msec
;; SERVER: 64.5.44.113#53(ns1.astahost.com)
;; WHEN: Sun Dec 26 17:48:12 2004
;; MSG SIZE rcvd: 120

Your a record exists, you just have to be patient and wait for it to propagate across the name servers.

Nils

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