Ever wonder whoâ€™s on your mailing list and where theyâ€™re coming from? While many email service providers (including WhatCounts) offer sophisticated analysis tools, sometimes a simple spreadsheet is all thatâ€™s needed. Today, letâ€™s look at how to see your list broken down by domains. First, youâ€™ll need a list and a spreadsheet. Click here to see an example Google Doc, and click the File > Make a Copy menu item if youâ€™d like to borrow this for your own use. This works with Microsoft Excel as well; weâ€™re using Google Docs because itâ€™s the least expensive option available to nearly everyone. In column 1, youâ€™ll need to put in your mailing list. In column 2, weâ€™ve set up a formula that looks at column 1 and truncates everything before the @ sign. The formula looks like this: =MID(A2, FIND(â€œ@â€, A2) + 1, 255) In column 3, weâ€™re using a summary function that says, show every unique value in column 2: =unique(B:B) Finally, in column 4, weâ€™re using the COUNTIF function, showing the count of each value from columns 3 and 2: =countif(B:B,C2) What does this level of spreadsheet trickery get you? Reports like this: From this kind of spreadsheet summary, you can get a very good idea of which domains and service providers your users are coming from. For example, note that in this excerpt from one of my mailing lists, there are people coming from Canada (line 15), the UK, (line 19), and even France (line 25). This tells me that my email list subscribers are an international audience, and thus I should be sure to provide content relevant to more than just one nationâ€™s audience. I also know that a significant portion of people use GMail, which means I need to alter my email formatting of my design to work well with the GMail platform. What I find truly interesting about this sample is that the list of people is a business crowd, but so many people are subscribed with â€œhomeâ€ email accounts, domains like GMail, Hotmail, or Yahoo. That tells me that segmentations which leap to the conclusion that webmail providers are not business accounts is, for this list, incorrect. A deeper dive into the data indicates that approximately 10% of those GMail addresses are C-level executives using their home addresses to subscribe to this list rather than their corporate address. One obvious takeaway is that if your web forms have â€œsmart logicâ€ that rejects webmail accounts, you could be missing out on some very valuable prospects! Try out the spreadsheet for yourself to see how the logic works, then incorporate it into your own email marketing analysis!