some delayed emails in my portal email(portal.kfupm.edu.sa)

[cooperator]

Hello,

Hi everyone,

The correspondences were sending normally between my server ID ( my email portal in a university(portal.kfupm.edu.sa) and my yahoo email for about ten times, but after that the outgoing emails from my mail server (portal email) have been became deferred, however, the outgoing emails from my yahoo emails have been sending since the first time so far.(only the problem in the my email portal that can't wend the outgoing to another email but it recieves the coming emails.

now whenever I loggeg in my email portal I found some delayed emails, whenever I open one of them I found this same message appears for me:

####################################################################

# THIS IS A WARNING ONLY. YOU DO NOT NEED TO RESEND YOUR MESSAGE. #

####################################################################

Your message could not be delivered for 0 days, 4 hours, 0 minutes.

It will be retried until it is 5 days, 0 hours, 0 minutes old.

For further assistance, please send mail to <postmaster@kfupm.edu.sa>

If you do so, please include this problem report. You can

delete your own text from the attached returned message.

<XXXX@yahoo.com>: 421 4.4.0 [internal] no MXs for this domain

could be reached at this time

when I logged in my mail portal after about a ten- hours period I found four delayed emails, whenever I open one of them I found this same message in all of them;

####################################################################

# THIS IS A WARNING ONLY. YOU DO NOT NEED TO RESEND YOUR MESSAGE. #

####################################################################

Your message could not be delivered for 0 days, 12 hours, 0 minutes.

It will be retried until it is 5 days, 0 hours, 0 minutes old.

For further assistance, please send mail to <postmaster@kfupm.edu.sa>

If you do so, please include this problem report. You can

delete your own text from the attached returned message.

<XX@yahoo.com>: 421 4.7.0 [TS01] Messages from 212.26.1.71

temporarily deferred due to user complaints - 4.16.55.1; see

http://postmaster.yahoo.com/421-ts01.html

This is further information about the error whcih is appear in my portal email:

"This error message indicates we are seeing unusual traffic from your IP address and/or that emails from your mail server are generating complaints from Yahoo! Mail users. Please note that this is a temporary error, and we encourage you to retry sending emails to our servers approximately 4 hours after you encounter this particular error.

If you are seeing this error consistently over a 48-hour period, we encourage you to provide us with detailed information, including the complete error message you see in your logs, by filling out this form. (Note: Please make sure to select "Getting deferrals due to user complaints" in the form's dropdown menu.)"

Note: is this the error because I modified the option of my emails portal as in this picture that is given down:

I would be greatful appreciateted if yoiu could help me

Configuration: Windows 7 / Internet Explorer 8.0

[cooperator]

please have a look at this picture

[AdvancedSetup]

Your main issue is that you do not have your mail server setup to comply with the current standards of email.

Many of the bigger email servers will not accept email from unknown or misconfigured mail servers.

AOL probably has one of the most strict setups to comply with but they also have some of the best documentation on how to setup and configure your email so that it will be accepted. If you can get email accepted at AOL you can probably get it accepted at any mail server.

Basically by sending more than a few emails it makes your system look like it is spamming because it's not a "known" mail server on the Internet. Once it's been setup and trusted then you won't have an issue.

Please visit this site and you'll find more than enough information to get you going in the right direction.

http://postmaster.aol.com/

Good luck...

[cooperator]

Your main issue is that you do not have your mail server setup to comply with the current standards of email.

Many of the bigger email servers will not accept email from unknown or misconfigured mail servers.

AOL probably has one of the most strict setups to comply with but they also have some of the best documentation on how to setup and configure your email so that it will be accepted. If you can get email accepted at AOL you can probably get it accepted at any mail server.

Basically by sending more than a few emails it makes your system look like it is spamming because it's not a "known" mail server on the Internet. Once it's been setup and trusted then you won't have an issue.

Please visit this site and you'll find more than enough information to get you going in the right direction.

http://postmaster.aol.com/

Good luck...

Thank you so much indeed, but pleas I have said that the myemail@kfupm.edu.sa was sending messages to my yahoo@yahoo.com and this picture explains that:please have a look at this picture:(Did you see my pictures, please informe me)

but after about ten messages my myemail@kfupm.edu.sa will no longer to send any message and whenever I have tried sending I see an informed email that is called "delayed email" to the inbox of myemail@kfupm.edu.sa. however when I was trying to send a message from myYahoo@yahoo.com to myemail@kfupm.edu.sa I didn't see any problem and my myemail@kfupm.edu.sa recieves the coming messages.

I hope you understand me

[AdvancedSetup]

Well then your email administrator needs to look at the issue. A deferred message based on what you've shown says that currently they don't trust this mail server or its not configured properly. I assumed you were the Administrator of the server, if not then refer it to your local network administrator and he should be able to correct it.

You can send all the email you want within reason to yourself from yahoo because they are setup and trusted. But sending the other way around is the issue, at least as I read what you appear to be saying.