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You are here: Home>> Tutorial>>E-mail Headers

Better E-mail Headers to Reduce Spam Reports

Some mailing programs use a customer ID to enable bounces and replies to be handled efficiently by the sending application. Example below:

    Return-Path: <12345.987654321@email.company.com>
    Received: from rly-xg02.mx.aol.com (rly-xg02.mail.aol.com [172.20.115.199]) by air-xg02.mail.aol.com (v95.12) with ESMTP id MAILINXG22-4503f3be83836d; Thu, 14 Aug 2003 15:51:56 -0400
    Received: from mta1.espmailer.net (mta1.espmailer.net [100.200.50.1]) by rly-xg02.mx.aol.com (v95.1) with ESMTP id MAILRELAYINXG24-4503f3be83836d; Thu, 14 Aug 2003 15:51:21 -0400
    Date: Thu, 14 Aug 2003 15:54:53 -0400 (EDT)
    Message-Id: <91435-12209-86938625-2@espmailer.net>
    From: "Company.com" <12345.987654321@company.com>
    To: AOLMEMBER@AOL.COM
    Subject: Fall Travel Sale! The Best Deals on Airfare, Hotels, & More MIME-Version: 1.0
    Content-Type: multipart/alternative;
    boundary="----000000000000000000000000000000000000000000000000000000000000000"

**********************************************
When an AOL member opens this e-mail, they will see the following in their mailbox:

    From: 12345.987654321@company.com
    Subject: Fall Travel Sale! The Best Deals on Airfare, Hotels, & More
    Date/Time: August 14, 3:54pm

Many e-mail applications will show the "pretty" address in quotes as the sender (in this case Company.com). But AOL software (including 9.0) will instead show the address in <> brackets. (Note: Netscape 7.0 and AOL's new AOL Communicator e-mail applications do show the pretty address.)

In addition, many times the customer ID is longer than the AOL Client "From" field allows, so the AOL member will see a truncated portion of the address. For example:

From: 12345.98

This situation may make the member believe this e-mail is spam.

***********************************************

There is a header "trick" that can be used to make things work better for AOL members but will not affect the rest of your internet recipients. Change the "From" line and add a "Reply-To" header as follows:

    Reply-To: <12345.987654321@company.com>
    From: "Company.com" <12345.987654321@company.com>

1. The member will now see Company.com as the sender.
2. The bounce address ("Return-Path") has not changed.
3. In addition, if they reply to the e-mail, the reply will go back to the <12345.987654321@company.com> address.