Solved

Huge mail delay (ident callback?)

Posted on 2006-10-24
4
1,039 Views
Last Modified: 2010-05-18
Hello,

All the mail we receive comes with a delay, some with a delay of like 2 hours.

Now my isp tells me that this can be changed by setting ident callbacks to timeout in 0 seconds or disabling ident callbacks,well i looked under every rock on the internet and cannot find a solution, anyone ?

We are using Exchange 2003, where we use an external mail relay server of our isp that does not allow ident callbacks.
Port 25 is closed inbound so we have to use their mailrelay server.
0
Comment
Question by:testycle
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
4 Comments
 
LVL 104

Expert Comment

by:Sembee
ID: 17795098
I am pretty sure "ident callbacks" is what Exim calls reverse DNS lookup. Have you got that function enabled on the SMTP virtual server?

Simon.
0
 

Author Comment

by:testycle
ID: 17795113
i've got that disabled already but still the delay is there, it's a delay of like 1:15..
0
 
LVL 104

Accepted Solution

by:
Sembee earned 500 total points
ID: 17795224
Can the ISP prove that the problem is not with their setup?

I have zero confidence in ISP mail servers. I have seen messages disappear in to their mail servers and not come out again for six weeks and the ISP will not admit it is their problem (even with the headers). Unless you are in one of those areas where you have no choice on ISP, I would be looking for another one right now.

There is nothing in a native installation of Exchange that could cause those sorts of delays.
What else is installed on the server? Anything else that scans the email messages? Antivirus, antispam etc? Does the Exchange server answer SMTP traffic or is it something else? Appliance or application for example?

Simon.
0
 

Author Comment

by:testycle
ID: 17801871
Sembee you are right it was not my exchange setup but the mailrelay of the isp :(
0

Featured Post

Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Lotus Notes – formerly IBM Notes – is an email client application, while IBM Domino (earlier Lotus Domino) is an email server. The client possesses a set of features that are even more advanced as compared to that of Outlook. Likewise, IBM Domino is…
This article will help to fix the below errors for MS Exchange Server 2013 I. Certificate error "name on the security certificate is invalid or does not match the name of the site" II. Out of Office not working III. Make Internal URLs and Externa…
In this Micro Video tutorial you will learn the basics about Database Availability Groups and How to configure one using a live Exchange Server Environment. The video tutorial explains the basics of the Exchange server Database Availability grou…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…
Suggested Courses

636 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question