C#: Cleanest way to divide a string array into N instances N items long

Question

I know how to do this in an ugly way, but am wondering if there is a more elegant and succinct method.

I have a string array of e-mail addresses. Assume the string

Answer 1

Seems similar to this question: Split a collection into n parts with LINQ?

A modified version of Hasan Khan's answer there should do the trick:

public static IEnumerable> Chunk(
    this IEnumerable list, int chunkSize)
{
    int i = 0;
    var chunks = from name in list
                 group name by i++ / chunkSize into part
                 select part.AsEnumerable();
    return chunks;
}

Usage example:

var addresses = new[] { "a@example.com", "b@example.org", ...... };

foreach (var chunk in Chunk(addresses, 50))
{
    SendEmail(chunk.ToArray(), "Buy V14gr4");
}