Your E-mail is Being Marked as SPAM

From OCS Support Wiki

Jump to: navigation, search

Contents

[edit] Introduction

This article goes over some of the common reasons that your e-mail that you are sending either from your website or mail client would be marked as SPAM, and ways to prevent it.

[edit] Shared Web Hosting Customers

[edit] Messages Sent with Mail Client Marked as SPAM

If e-mail being sent from your mail client (ie. Outlook Express, Outlook, Thunderbird, etc.) is being marked as SPAM, it usually means that your IP address or your ISP has been placed on a blocking list. If you are using your ISP's SMTP server to send mail, you will need to contact your ISP. If you are using our mail servers (which we recommend using your ISP's SMTP servers in most cases), please contact us with any bounce notifications that you receive.

[edit] Message Sent from Website Marked as SPAM

If you have a website script or application that sends mail and it is being marked as SPAM, please check:

  • You are using a valid address to send the message from. The e-mail must exist on your domain (ie. you can send and receive e-mail to that address). Messages sent with invalid from addresses with either be rejected by our mail server or by your destination's mail server. If you're not sure, you may have to ask the person/company who designed your website about this.
  • Your website is using the mail() function in PHP and the :sendmail method with Rails to send e-mail. Please see Configuring_ActionMailer for more information on sending e-mail with Ruby on Rails.

[edit] Virtual and Dedicated Server Customers

There are several reasons for mail sent from a virtual dedicated or dedicated server being marked as SPAM, which include:

  • Our RDNS records don't match your hostname. If you have changed your hostname, this could be the case. Please contact our support department about this.
  • You are not sending from a valid address. Make sure that the e-mail address that the e-mail is being sent from is a valid address.
  • Your server may be on a SPAM blocking list. Please contact our support department to help resolve this.
  • Your mail server may not be configured properly. Make sure it is using your full and correct hostname as the server name it presents itself as. This is typically found in the file /etc/mailname on machines with Postfix installed.

If you are still experiencing this problem, please contact us.

Retrieved from "http://wiki.ocssolutions.com/Your_E-mail_is_Being_Marked_as_SPAM"