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Test online your SMTP server

Discussion in 'Security' started by Thibaut, Dec 13, 2006.

  1. Thibaut

    Thibaut Active Member

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    #21
    Just to inform I upgraded the script for a better testing of your MTA (Message Transfer Agent). Hope you're still enjoying this very oooooold script (Roughly, about 10 years old :cool:
    SEMrush
     
    Thibaut, Feb 9, 2011 IP
    SEMrush
  2. llaen

    llaen Peon

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    #22
    This is indeed useful!

    One thing that I found annoying is that it stops completely after a test fails.
    Is it safe to assume that if say test 20 fails then the rest of them will fail as well because they are based on each other?

    If not then I'd say it's useful to see all the tests that fail.
     
    llaen, Jun 21, 2011 IP
  3. bjblackmore

    bjblackmore Peon

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    #23
    Is the site still available? I'm trying to access www. pagasa.net/test-smtp-server and I just get "page can not be displayed". Is there a new site with the script?

    EDIT: No matter, site seems to be working again now!
     
    Last edited: Jan 23, 2012
    bjblackmore, Jan 23, 2012 IP
  4. afrog

    afrog Peon

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    #24
    Good service!
     
    afrog, Jan 28, 2012 IP
  5. supportex

    supportex Peon

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    #25
    I think you need limited the number of tests from one IP(and to one SMTP-server). May show test-results from the cache. Otherwise your service quickly banned.

    Relaying test.
    Attempting to connect to gmail.com....
    
    Error: host is unreachable
    Code (markup):
     
    supportex, Jan 29, 2012 IP
  6. wajidabbasi

    wajidabbasi Peon

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    #26
    [TABLE="width: 1432"]
    [TR]
    [TD="class: xl65, width: 1432"]

    Wow! Very interesting explanation of research. My friend will love this. Nice Information![/TD]
    [/TR]
    [/TABLE]
     
    wajidabbasi, Apr 12, 2012 IP
  7. DTE

    DTE Peon

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    #27
    Below is my results for your SMTP test.
    I see many questions of "my SMTP server shows relay open, is this bad?" Yes it is exactly what this is about.
    I have been administrating email servers since 1969-1970..
    I know most of you think there was no Internet during those dates.
    Read the book. "The Cookoo's Egg."
    It's a great read on the old Internet. It's might even teach you something about security.
    Mostly it is good history and great fun.
    Short story, I was there!

    Here's my smtp test results from this site.
    Any less and I would imediatly remove the ethernet cable from it.
    Again, many thanks.
    THE RESULTS:
    [h=1]Relaying test.[/h]Attempting to connect to mail.sutz.me....

    <<< 220 data-technologies.net ESMTP Postfix
    >>> EHLO www.test-smtp.com
    <<< 250-data-technologies.net
    <<< 250-PIPELINING
    <<< 250-SIZE 10240000
    <<< 250-VRFY
    <<< 250-ETRN
    <<< 250-ENHANCEDSTATUSCODES
    <<< 250-8BITMIME
    <<< 250 DSN
    >>> HELP
    <<< 502 5.5.2 Error: command not recognized
    >>> AUTH LOGIN
    <<< 503 5.5.1 Error: authentication not enabled
    >>> VRFY postmaster
    <<< 252 2.0.0 postmaster
    >>> STARTTLS
    <<< 502 5.5.1 Error: command not implemented
    >>> NOOP
    <<< 250 2.0.0 Ok
    [h=4]Test 1/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@spam.com>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test@spam.com>
    <<< 554 5.7.1 <test@spam.com>: Relay access denied
    [h=4]Test 2/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test@spam.com>
    <<< 554 5.7.1 <test@spam.com>: Relay access denied
    [h=4]Test 3/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@99.174.150.254>
    <<< 501 5.1.7 Bad sender address syntax
    Error: bad SMTP reply
    [h=4]Test 4/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@[99.174.150.254]>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test@spam.com>
    <<< 554 5.7.1 <test@spam.com>: Relay access denied
    [h=4]Test 5/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@127.0.0.1>
    <<< 501 5.1.7 Bad sender address syntax
    Error: bad SMTP reply
    [h=4]Test 6/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@[127.0.0.1]>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test@spam.com>
    <<< 554 5.7.1 <test@spam.com>: Relay access denied
    [h=4]Test 7/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@mail.sutz.me>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test@spam.com>
    <<< 554 5.7.1 <test@spam.com>: Relay access denied
    [h=4]Test 8/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@localhost>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test@spam.com>
    <<< 554 5.7.1 <test@spam.com>: Relay access denied
    [h=4]Test 9/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@localhost.localdomain>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test@spam.com>
    <<< 554 5.7.1 <test@spam.com>: Relay access denied
    [h=4]Test 10/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <*>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test@spam.com>
    <<< 554 5.7.1 <test@spam.com>: Relay access denied
    [h=4]Test 11/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test@spam.com>
    <<< 554 5.7.1 <test@spam.com>: Relay access denied
    [h=4]Test 12/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test%spam.com>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test@spam.com>
    <<< 554 5.7.1 <test@spam.com>: Relay access denied
    [h=4]Test 13/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <"test@spam.com">
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test@spam.com>
    <<< 554 5.7.1 <test@spam.com>: Relay access denied
    [h=4]Test 14/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <"test%spam.com">
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test@spam.com>
    <<< 554 5.7.1 <test@spam.com>: Relay access denied
    [h=4]Test 15/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@[99.174.150.254]>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test%spam.com@[99.174.150.254]>
    <<< 554 5.7.1 <test%spam.com@[99.174.150.254]>: Relay access denied
    [h=4]Test 16/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@[99.174.150.254]>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test%spam.com@[mail.sutz.me]>
    <<< 501 5.1.3 Bad recipient address syntax
    [h=4]Test 17/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@[99.174.150.254]>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <"test@spam.com">
    <<< 554 5.7.1 <test@spam.com>: Relay access denied
    [h=4]Test 18/28[/h]>>> RSET
    <<< 421 4.7.0 data-technologies.net Error: too many errors
    Error: bad SMTP reply
    [h=4]Test 19/28[/h]>>> RSET
    Error: host didn't reply on time
    >>> NOOP
    Connection lost
    Attempting to connect to mail.sutz.me....
    <<< 220 data-technologies.net ESMTP Postfix
    >>> EHLO www.test-smtp.com
    <<< 250-data-technologies.net
    <<< 250-PIPELINING
    <<< 250-SIZE 10240000
    <<< 250-VRFY
    <<< 250-ETRN
    <<< 250-ENHANCEDSTATUSCODES
    <<< 250-8BITMIME
    <<< 250 DSN
    [h=4]Test 19/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@[99.174.150.254]>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test@spam.com@[99.174.150.254]>
    <<< 554 5.7.1 <test@spam.com@[99.174.150.254]>: Relay access denied
    [h=4]Test 20/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@[99.174.150.254]>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <"test@spam.com"@[99.174.150.254]>
    <<< 554 5.7.1 <test@spam.com@[99.174.150.254]>: Relay access denied
    [h=4]Test 21/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@[99.174.150.254]>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test@spam.com@mail.sutz.me>
    <<< 554 5.7.1 <test@spam.com@mail.sutz.me>: Relay access denied
    [h=4]Test 22/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@[99.174.150.254]>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <@[99.174.150.254]:test@spam.com>
    <<< 554 5.7.1 <test@spam.com>: Relay access denied
    [h=4]Test 23/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@[99.174.150.254]>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <@mail.sutz.me:test@spam.com>
    <<< 554 5.7.1 <test@spam.com>: Relay access denied
    [h=4]Test 24/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@[99.174.150.254]>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <spam.com!test>
    <<< 554 5.7.1 <spam.com!test>: Relay access denied
    [h=4]Test 25/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@[99.174.150.254]>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <spam.com!test@[99.174.150.254]>
    <<< 554 5.7.1 <spam.com!test@[99.174.150.254]>: Relay access denied
    [h=4]Test 26/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@[99.174.150.254]>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <spam.com!test@mail.sutz.me>
    <<< 554 5.7.1 <spam.com!test@mail.sutz.me>: Relay access denied
    [h=4]Test 27/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@[99.174.150.254]>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test%spam.com@>
    <<< 554 5.7.1 <test%spam.com@>: Relay access denied
    [h=4]Test 28/28[/h]>>> RSET
    <<< 250 2.0.0 Ok
    >>> MAIL FROM: <test@[99.174.150.254]>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <test@spam.com@>
    <<< 554 5.7.1 <test@spam.com@>: Relay access denied

    [h=3]All tests succeded, no relay accepted.[/h] CPU time: 0ms - LA: 0.38 - 89 SMTP requests - 1 disconnection(s)
    Address: 99.174.150.254 - Reverse: adsl-99-174-150-254.dsl.hstntx.sbcglobal.net <<<- This is a problem being addressed."
    ESMTP: yes - TLS: no - AUTH: no - VRFY: no - MTA: Postfix
    Average time : 0.50sec - Slowest : 1.18sec - Fastest : 0.15sec
     
    DTE, May 17, 2012 IP