Infinity Email - Dictionary Attack?

[dancerdog3]

I am getting an error message when trying to send email on Infinity:

Task 'mail.[MY DOMAIN].com - Sending' reported error (0x800CCC0F) : 'The connection to the server was interrupted. If this problem continues, contact your server administrator or Internet service provider (ISP). The server responded: 550 Connection denied after dictionary attack'

I have tried from different domains and different email accounts and different PCs. It seems that this is truly a server issue.

How long until this is resolved?

[dancerdog3]

I opened a support ticket on this, and it was resolved in about 2 minutes.

HostGator support rocks!

[DaveW]

Originally Posted by dancerdog3

I opened a support ticket on this, and it was resolved in about 2 minutes.

HostGator support rocks!

Same situation here and I received excellent service and support via email

[Serra]

This is one of those issues where the system turns off and waits for someone to turn it back on. It is really the only defense against dictionary attacks.

I assume everyone knows what a dictionary attack is?

Funny story, I was attacked by with a dictionary when I was in grade school.

[tina]

no Serra, no idea

i could guess but that's it ! Like throwing Webster at you to find your password? or attacking you with so many words that "it crashes"??

very new and very naive here...always amazed at what people come up with to mess with your stuff!!

Please explain, and don't worry of talking down to me, "things" are still very much in the fog to me.
Thanks to forums and good books I am starting to at least hear the foghorns...

[MachineDog]

We can try asking the Oracle.

[tina]

I like you kid, you smart !
Sometimes i forget the obvious

So I did as you suggested and got too many answers so I went to an other kind of Oracle and got this answer...good I wasn't that wrong in my guess.


n.) (1) A method used to break security systems, specifically password-based security systems, in which the attacker systematically tests all possible passwords beginning with words that have a higher possibility of being used, such as names and places. The word “dictionary” refers to the attacker exhausting all of the words in a dictionary in an attempt to discover the password. Dictionary attacks are typically done with software instead of an individual manually trying each password.
(2) An e-mail spamming technique in which the spammer sends out thousands or millions of e-mails with randomly generated addresses using combinations of letters added to known domain names in the hopes of reaching a percentage of actual e-mail addresses. For example, a dictionary attack list might begin with john@webopedia.com, john1@webopedia.com, john2@webopedia.com, and so on until all possible combinations of letters and numbers has been exhausted.

550 connection denied after dictionary attack


"550 connection denied after dictionary attack Port 25 Security (SSL) Server error 550. Error number 0x800CCC79"

If you are seeing this or similar in your mail client when trying to send email, it can be from several things.

THIS IS THE MOST COMMON REASON!
1) You are trying to send email using the SMTP server without first POP'ing the server to authenticate, or without authenticating at all.

Solution: THIS IS THE MOST COMMON ANSWER!
Try checking the box to SMTP AUTH. In Outlook express this is called:

Servers > Outgoing mail server > My server requires authentication.

In Mac and other platforms, this option to authenticate is usually located on the dialog where you configure your outbound / SMTP server. It is usually a checkbox.

The other option is to make sure you check your POP addresses before attempting to send email that way you have already been authenticated. (ala click send/receive and login to the POP server first, making sure you are not sending first, but this is not recommended probably not even for advanced users because it is inconvenient.

Your authentication expires after 30 minutes so you will have to re-authenticate if you have been idle for this long in order to send mail. If you configure you mail program to check for email at least once every 30 minutes minutes then you should remain authenticated and might not need to check the box, assuming your computer is on 24 hours a day and is never offline.

But for best practices, always check the "my server requires authentication" box. It's foolproof.

Also of notable interest:
Checking the inbox hyperactively say every 5 minutes or less sometimes can lead to the server banning your IP address because it assumes that you are trying to do something bad by connecting to the server so frequently. Turn the frequency down a little bit to prevent this from happening.
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2) Your email program has been incorrectly configured and you have attempted to login too many times in a row, in a short duration of time, with the wrong password or username. The server probably has temporarily blocked access from your IP address.

Solution: make sure to remove any misconfigured accounts from your email reader and the remaining accounts that do connect should have the correct password. turn down the frequency of your checks for email to the server to 6 minutes or mare.

If this does not solve your problem, we suggest running an up to date anti-virus program as it is possible that your PC has been blocked by the mail server for sending too many incorrect SMTP requests.
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3) You have 4 our more items in your outbox that match certain filtering criteria. Namely, 4 emails improperly addressed. When this happens and the SMTP connection cannot be completed the server assumes you are a spammer trying to send arbitrary emails to the general Internet population. It then blocks you.

Solution: Purge your local outbox after verifying your To: line is incorrect, wait a few minutes (close your email reader) and try again.

"Be careful about reading health books. You may die of a misprint. " - Mark Twain

[QUOTE=dancerdog3;18791]I am getting an error message when trying to send email on any one.

Task 'mail.[MY DOMAIN].com - Sending' reported error (0x800CCC0F) : 'The connection to the server was interrupted. If this problem continues, contact your server administrator or Internet service provider (ISP). The server responded: 550 Connection denied after dictionary attack'

I have tried from different domains and different email accounts and different PCs. i scanned all the systems in my n/w in norman hoping due to virus.but then also the same error.

Please do reply to me and resolve my problem immidiately

regard's
mohan.k