January 30th, 2010, 08:40 AM
Unable to deliver message due to being unable to connect
OS: Windows Server 2008
SMTP Server IIS 6
One of the applications on this server is sending e-mails to users.
With one exception all users get the e-mails as expected.
For that exception user we get from the server’s postmaster a Delivery Status Notification (Failure): “Unable to deliver message to the following recipients, due to being unable to connect successfully to the destination mail server <e-mail address>”. Trying with other e-mail addresses from the same domain we get the same result.
What is the cause of this behaviour and what should we do?
January 31st, 2010, 04:00 AM
Have the recipient domain check their dns settings, specifically the MX record, and also verify their mail server is running.
I've never been able to appreciate the sublime arrogance of folks who feel they were put on earth just to save other folks from themselves .." - Donald Hamilton
January 31st, 2010, 04:47 AM
Thanks, we also suspect that the problem is at the recipient's server. However e-mails sent to that domain by other senders are well received.
Originally Posted by Doug G
Last edited by anadin; January 31st, 2010 at 04:50 AM.
January 31st, 2010, 03:16 PM
Fatal error:1048 Column 'from_id' cannot be null
I'm a newbie and hope to find the help I desperately need . When I send an internal email and select to be notified when recipient opens the message, the recipient would get the following error when attempting to open the mail;....
Fatal error: 1048 Column 'from_id' cannot be null in /home/wwwthab/public_html/common/classes/class_MailHandler.lib.php on line 351
I looked on line 351 and this it's what I found;.... trigger_error($this->dbObj->ErrorNo().' '.$this->dbObj->ErrorMsg(), E_USER_ERROR);
I would like to know what would be the exact way to correct this error. I have never worked on this before and would appreciate your assistance and guidance.
I do have a second question. I'm working on a social network and would like to know what would be best way to go for a mail service, the hosting company server or google api? I'm equally interested in performance as in security....Thank you.