Advertisement

11.28.2007 at 04:35AM PST, ID: 22987306
[x]
Attachment Details

Sendmail error    "lost input channel from"     using Sendmail version 8.13.1

Asked by ccfcfc in SendMail Email Server, Simple Mail Transfer Protocol (SMTP)

Tags: sendmail, channel, lost, from

Using Sendmail version 8.13.1 from a Linux box.
Seem to be getting " lost input channel  "  and a "User Unknown " almost immediate. Can send email to every other external domains i.e @hotmail.com or @gmail.com  but if the destination domain is the company's domain then it gets rejected.
This sendmail in on an internal network and allows mail out /in and due to other mail going out we know the firewall is not to blame for rejection. The mails being sent go via the correct SMTP server as seen in the mail log.
I have added a RELAY  to this domain and even SPAM CONTROL for that Domain to ALLOW . But every time we get "lost input channel" and almost immediately the <username@companyname.com  user Unknown  then the   "lost input channel".
It is really weird as to why we are unable to send to every other domain than our own.
Appreciate as to why .Start Free Trial
[+][-]11.28.2007 at 07:14AM PST, ID: 20365983

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 7-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]11.28.2007 at 07:28AM PST, ID: 20366084

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 7-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]11.28.2007 at 07:59AM PST, ID: 20366376

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 7-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]11.28.2007 at 08:13AM PST, ID: 20366516

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 7-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]11.28.2007 at 08:27AM PST, ID: 20366626

View this solution now by starting your 7-day free trial. Setting up your free trial is quick, easy, and secure. We will return you to this solution, unlocked, when you're done.

 

About this solution

Zones: SendMail Email Server, Simple Mail Transfer Protocol (SMTP)
Tags: sendmail, channel, lost, from
Sign Up Now!
Solution Provided By: _jesper_
Participating Experts: 1
Solution Grade: A
 
 
 
Loading Advertisement...
20080716-EE-VQP-32 / EE_QW_2_20070628