July 24, 2008 08:34pm pdt

1. jar3817 34,140
2. Nopius 21,639
3. PsiCop 20,150
4. _jesper_ 17,600
5. RaulDias 17,250
6. war1 13,122
7. kieran_b 13,000
8. fgrushev... 8,290
9. Sembee 8,186
10. grblades 7,875
11. hielo 6,675
12. Chris-Dent 6,000
13. uetian1707 5,800
14. kenfcamp 5,450
15. gheist 4,500
15. mwecom... 4,500

1. jlevie 347,626
2. PsiCop 246,639
3. anfi 85,387
4. jar3817 79,549
5. Nopius 66,789
6. kenfcamp 48,713
7. markt9 39,546
8. Sembee 34,311
9. war1 29,797
10. _jesper_ 27,800
11. it_alchem... 25,390
12. samri 25,291
13. grblades 24,470
14. ygoutham 19,675
15. HalldorG 18,447

04.17.2004 at 08:58PM PDT, ID: 20957897

	[x] Attachment Details

[x]

The Solution Rating System

With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.

The Grade of the Solution
The Zone Rank of the Expert Providing the Solution
The Number of Author and Expert Comments
The Number of Experts Contributing
The Feedback of the Community

Your Input Matters
Because of the way the system is set up, the most important variable in this equation is you. As a member of Experts Exchange, you are able to cast your vote on the quality of the solutions in regard to how complete, accurate, helpful and easy to understand each solution is. When you provide your feedback, each rating is adjusted accordingly. So, if you see a solution that has a poor rating that you think is a good solution, let us know by rating it. As you do, the rating will be adjusted and will become more accurate for other members of our site.

If you have any suggestions that you would like to make for our rating system, please ask a question in the Suggestions Zone of Community Support.

Thank you!

5.6

Sendmail Error 451 4.7.1 and Illegal Seek

Zone: SendMail Email Server

Tags: 451, error

We have been having a problem lately with our two sendmail machines. We have had them for a long time, and they have always been reliable until recently. Currently these two sendmail machines are our outside relays. They accept mail, then relay to our spam box, which then relays to our Exchange server. This was all working correctly until recently.

Now, several times a day, the two sendmail queues stop. It appears that an email comes into the queue and causes a "451 4.7.1 Please try again later" error. Once that error occurs then all the other emails that appear to come in behind it receive the illegal seek error. The queues then appear to stop.

Generally rebooting will not fix the problem. And it seems that issuing a sendmail -q doesnt always fix it. It seems to me that the machines have to queue up over 100 messages, before sendmail -q will do anything. If I issue before that, it instantly comes back to the prompt. When it does work, the queue clears out, except for the original message that caused the 451 4.7.1.

I am very new to sendmail, and only can relate what I know through trying to diagnose this problem.

Both boxes are running Suse 7.2 with sendmail 8.11.2.

The spambox is a third party appliance running solaris and sendmail 8.12 (I believe)

The email that causes the jam is always a piece of spam, and for some reason is always ~650 bytes.

Any help would be appreciated!!!

Start your free trial to view this solution

Question Stats

Zone: Networking

Question Asked By: blohrer

Solution Provided By: jlevie

Participating Experts: 2

Solution Grade: B

Translate:

Loading Advertisement...

20080236-EE-VQP-29