[KatW]

Hello,

For some reason I can receive emails but when I try to send and email I get the following error.

The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was '[email protected]'. Subject 'Re: Instant Messaging', Account: 'mail.thumb.net', Server: 'mail.thumb.net', Protocol: SMTP, Server Response: '550 relay not permitted', Port: 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC79

Now I use this email address at home and at work. When I use it at work it is fine and I can send out fine but when I try and send an email it just sits in the Outbox.

I have contacted my ISP and he can not figure out why it will send out at work and not at home.

I have had my computer checked for Malware (through this website) and it is all clear now but I still have this one problem.

So any help would be appreciated.

Thanks so much,

KatW.

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[KatW]

Thanks I will take a look.

KatW.

[angels-high]

Hi

I have the same problem and have tried thunderbird but to no avail. Keep getting server time out problems when connecting

[KatW]

Hello,

I downloaded Thunderbird and everything imported well but when I try and send I still get a error message.

"An error occurred while sending mail. The mail server responded: relay not permitted. Please verify that your email address is correct in your mail preference and try again."

I just can not figure out what the problem can be any ideas?

Thanks,

KatW

[Murray S.]

Howdy:

Is the email account you are trying to use here the one assigned to you by your isp - ie: their username, password and email servers??

Murray

[katkat92]

If you are sure you have a valid email address and your account settings are fine then check with your ISP to see if it's being blocked because of an open relay.

[KatW]

Hi Murray,

Yes, it is the same email address that I have had for years but for some reason I can not send anymore. This started maybe a week ago. Now the ISP is trying to find out what is going on at his end and I am trying at my end but we can not seem to find the problem.

Thanks,

KatW.

[KatW]

Hi Kat,

I will tell him to look for a open relay.

Thanks,

KatW.

[Murray S.]

Go into your email account and check the smtp and pop server settings.. If those are correct, make sure the "my server requires authentication" is checked..

Next, click on the settings tab right beside the authentication post and make sure the "use the same settings as my incoming server" is checked..

Apply and okay out..

Murray

[katkat92]

I'm my experience the "server requires authentication" does not need to be checked.

Do you use the same outgoing server as your incoming?
(example: you have a pop3 account with abc isp, but you are using your connection to 123 isp to connect to the internet)

In this case your incoming and outgoing servers would be different.

I'd still have your isp check and see if the message was blocked because of an open relay.

(an open relay is used by spammers, and many isp's will block messages sent by open relay)

[Murray S.]

katkat:

Some ISPs restricts access to the SMTP servers to authenticated IP addresses only. You have to successfuly login into ISP's POP3 server firstly and then you can use ISP's SMTP server for some time period (cca 30 minutes).

Every ISP in my neck of the wood's has this requirement and more and more are getting into it.. Stops some spamming attempts when using a proxy to go through your email server!!


Murray

Edited by Murray S., 27 May 2005 - 07:12 AM.

[katkat92]

I own an isp and we don't require it, and every isp in my neck of the woods doesn't either.....sorry

[Major Payne]

Maybe reading this will help :

Troubleshoot 550, 553, and relay-prohibited errors

Ron

[Major Payne]

Meant to include this link in case you use Outlook :

You receive a SMTP relay blocks error message when you send e-mail messages in Outlook 2002 and Outlook 2003

Ron