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This is the support site for Andrews & Arnold Ltd, a UK Internet provider. Information on these pages is generally for our customers but may be useful to others, enjoy!

Sending Email Errors: Difference between revisions

Sending Email Errors (view source)

Revision as of 21:25, 6 January 2015

6 bytes added ,  6 January 2015
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→‎BO1: clean up, typos fixed: ie, → i.e., (2), eg: → e.g.:
m (→‎BO1: clean up, typos fixed: ie, → i.e., (2), eg: → e.g.:)
This means that we have blocked sending of a non-delivery report type message. This would be an email, typically from a customer server, that is a bounc eback message. Rather than rejecting the incoming message at SMTP time, the customer mail server has accepted the incoming message and then decided that it was now wanted, and generated a new email back to the original sender saying that the message has not been delivered.
 
We don't allow sending of bounces back messages due to backscatter problems. -iei.e., most of the time the message being rejected is spam, and so a reply to the spam just means that email is being sent to an invalid address anyway. This can cause our servers to be placed on to blacklists, and it is better practice to reject email at smtp time.
 
In these cases, please configure your email server to reject mail at SMTP time, or to send messages by MX records rather than relaying through smtp.aa.net.uk.
 
We catch this by matching a null sender address, iei.e. the sender email address is <>, and a list of known subject lines that are bounce back messages ege.g.:
 
DELIVERY FAILURE
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