How to manage, maintain and clean bounced or undelivered emails from your mailing list?

G-Lock EasyMail can determine up to 70-90% of nonexistent addresses in the direct delivery mode. Most of them are nonexistent mailboxes. A mail server refuses to receive a letter for the given user because the mailbox does not exist. In sending log of such a message you can see the following records (attention to the line beginning from "550"):

08-Jun-01 7:18:56 PM - Connecting to Host: mail.checkerbee.com:25 through

< 220 X1 NT-ESMTP Server mail.checker.com (IMail 6.00 3292-1)
> HELO glocksoft.com
< 250 hello mail.checker.com
> MAIL FROM:<info@glocksoft.com>
< 250 ok
> RCPT TO:<cperry@checker.com>
< 550 unknown user <cperry@checker.com>

08-Jun-01 7:19:03 PM 550 unknown user <cperry@checker.com>

The rest of addresses are from already nonexistent domains. G-Lock EasyMail searches for such addresses by sending a request to the DNS server and determines that there are no mail servers on the Internet for this domain. In this case you will see in the "Result" column: "DNS Error: Name error", "DNS Error: Server failure" or "DNS Error: No mail servers were found".

Some SMTP servers receive all messages for any users and after that find the user and if the user is absent, the servers create a message with the error and details about the reason of non-delivery and return it to the sender. Read more...

Email Processor will help you to detect and process soft bounced and hard bounced emails that could not be caught by EasyMail in the direct send mode.

To collect all the messages which bounced back to your email account, it is very convenient to make a special email account where bounced emails will come back to. Then enter this email address as Return E-mail Address in the EasyMail Accounts window. So, all bounced emails will return to this address. Now you can let Email Processor handle these messages. Email Processor will gather all the bounced emails from the appropriate account, extract email addresses from these messages and save them to a file. Then you can load this file into the EasyMail Exclusion List. For this purpose, go to the Send Manager window, select the Exclusion List folder from the appropriate group, click the right mouse button and select the Load Exclusion List From Mailing List option from the popup menu. Next time when you do a mailing campaign, EasyMail will not send a message to the email addresses which are stored in the Exclusion List folder.

Note: it is not obligatory to create a special email account for bounced messages. You can use your regular email address. But in this case you should run Email Processor first and then receive the rest of your incoming messages using your mail client software.

The processing of unsubscribe requests works on the same algorithm. First the Email Processor handles all the messages with unsubscribe requests and then you can receive the rest of incoming messages using your mail client software.