Often times you will be asked in a support ticket to provide the full message headers of a particular email for troubleshooting purposes. This information is invaluable to technicians investigating spam and message delivery issues. Please visit the following link for a list of the most common email clients and the steps necessary to obtain […]
When you receive this error, it means that the IP address you’re attempting to send email from has been blocked by Spamhaus. In addition to the anti-virus and anti-spam software, we are relying on services provided by reputable organizations who maintain various RBLs to help stop spam e-mail from entering our systems. Generally RBLs are […]
This document is intended for those operating their own mail servers or smarthosts and/or systems or software that send mail through automated or scripted means. Examples of this would be an office PBX system sending voice mails to its users via email or a crontab on a remote server sending a report to an email […]
Why do I get a “553 Sorry, that domain isn’t in my list of allowed rcpthosts” error when sending mail?
You do not have SMTP authentication enabled in your mail client. Instructions for configuring your mail client are available here.
Some e-mail clients (also known as e-mail MUA) adhere to the new standard RFC2231 for attachment filename handling. Superb’s webmail, Thunderbird 1.5, and some newer e-mail clients adhere to these new standards. The new standard requires that any spaces and special characters in the attachment filenames are converted to their MIME equivalent. For example, a […]
E-mail Quotas are not continuously updated; they are automatically re-calculated once daily (usually at night). If you need your quota re-calculated sooner (for example, you were near or over your quota, and you just deleted a bunch of e-mail), you can force an immediate quota re-calculation by following these steps: Visit myCP Click on “Email […]
There are many reasons why you may not be able to send email, but the three most common reasons are: 1.) You are not using the correct SMTP server. Your SMTP server should be set to smtp.domain.com (where domain.com is the name of your domain). If you’ve recently registered your domain and want to begin […]