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Re: Problems sending Emails

Nigel Henry wrote:
On Wednesday 29 April 2009 18:16, Jim wrote:
Giuseppe Fuggiano wrote:
2009/4/29 Jim <mickeyboa sbcglobal net>:
FC10/KDE4.2/ Thunderbird

Sending Email Out to AOL.com.
When I send a Email to a person at AOL.com I get a email , Failure to
Send , Has anyone had problems like this ?
They say the reason they can't send is because of a  "421 Error"

My ISP ATT says it's because of Thunderbird, So I just hung up on them.
Hi Jim,
Your question is not very complete. It would be better to know _who_
emits that error and the complete string.  What your ISP ATT is saying
exactly about Thunderbird?  The 421 error could refer to many

Check these parameters:
 * The SMTP server should be a valid.
 * Also the recipient.

I did verify the smtp settings with my ISP and they they are correct.
By reading the "Failure" email I'm getting back, below is the part of
the email.

Hi. This is the qmail-send program at yahoo.com.
I'm afraid I wasn't able to deliver your message to the following
addresses. This is a permanent error; I've given up. Sorry it didn't work

<xxxxxxxx aol com>: does not like recipient.
Remote host said: 550 MAILBOX NOT FOUND
Giving up on

Some years ago when my son had an AOL account, I had problems from time to time e-mailing him. It turned out that if there was loads of spam being allowed through by your ISP, and then turning up at AOL, AOL would block everything coming from your ISP until they did something about the spam.

Whether AOL are still doing that, I don't know, and your ISP is hardly likely to admit to you that they are being blocked by AOL because of spam.

It may be worth phoning your friend, and ask him/her to contact AOL, and ask if your ISP is being blocked.


Thanks for that info.

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