Why do emails bounce? How to reduce rejected email

All of us have mail that bounce. Some of these are directly caused by lack of Netiquette. Nothing is worse than to have this happen at an inopportune time, such as a time-sensitive situation or with a resume, proposal or important document attached. Listed below are some of the causes. For space considerations, detailed explanations will not be given here. Other future blogs will discuss detail, error codes and resolutions. Here are some of the items all should note:

Wrongly addressed email

Changed email address

Large attachments

Host unknown, domain look-up failure

Mailbox unavailable

Mailbox full, or quota exceeded

Altered return addresses

Temporary errors

Unable to relay

Blacklist filters

Content filters

Sales/marketing terms
Unknown attachments

HTML

ActiveX content

Recipient servers are down or busy

Your email attributes and formats are not correct

References to explicit or illicit terms

It is important to note that there are "soft" bounces. These are when the sent to domain has accepted the sender's message and a final delivery does not transpire. This can often be rectified by the recipient's internal actions or by resending at a later time.

By contrast, a "hard bounce is more serious, meaning the email has been rejected and sender is to blame. 

Also there are temporary errors when the receiving server will adjust or retry internal delivery. Often these conditions are repaired without having to resend a message.

If simple Netiquette is applied in sending emails, the sender's rate of bounces almost always decrease. Obviously, poor use of Netiquette will result in more bounces both for the short-term and the long-term.


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We will be publishing a book on Netiquette shortly entitled "NetiquetteIQ - A Comprehensive Guide to Improve, Enhance and Add Power to Your Email". Also there will be an email "IQ" test on our website:

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paul@netiquetteiq.com

Paul Babicki

paul@netiquetteiq.com

+Serkan Gecmen

serkan@netiquetteiq.com

"Good Netiquette Writing!"

#mailiq