I am an existing customer using Mail Bagging service. My mail server went down yesterday but my customers are reporting that my emails are bouncing. Why is this happening?
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Our Mail Bagging solution works by detecting when your mail server is down and then immediately bagging the emails. As soon as your email server is back up, our system starts to relay the emails. However, there are certain scenarios where your mail server may come back up but have issues. In such cases, your mail server can still send a response to indicate that it is functional which triggers our server to send the emails. Some of these scenarios are: 1. Disk I/O errors on your mail server. When you bring your server back up, it sends a response to us indicating that it is functional. However, your mail server may be experiencing disk I/O errors or maximum usage of your hard disk space on your mail server. Thus, while it might look to the outside world that your mail server is now functional, it may start rejecting emails because of the issues outlined above. 2. Special setup such as anti-spam software on your mail server. There have been cases where anti-spam software on the mail server has rejected emails from our mail server. This may happen due to a variety of reasons. However, emails will bounce if this scenario occurs since your mail server does not accept the bagged emails from our server. 3. Unknown users on your mail server. This can be explained by the following: Consider client A's mail server (who uses Webservio's Mail Bagging service) fails. During this downtime Webservio bags the emails. Client A realizes that their mail server has been rendered useless and builds another mail server with the default configuration and brings it online. However, client A did not add all the users to the new mail server. Our mail server relays all emails to the new mail server, but since some users no longer exist on Client A's mail server, all emails are rejected by it, which causes the emails to be undeliverable. The best approach is to check the Mail Bagging scenario during the setup. Please talk to the support engineer who can test the scenario in a live environment. 4. Check to make sure that the MX record provided by us during the initial setup is there on your domain. Please do a domain lookup using our online utility found at DNSgoodies.com
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Created On: 18 Sep 2012 1:29 PM
