<A target="_blank" href="http://searchcio.techtarget.com/news/article/0,289142,sid182_gci1368549,00.html?track=sy183">Many companies have e-mail retention policies</A> but not everyone abides by them. An aide to the mayor of Boston routinely deleted his mail while employees of one agency were told to delete mail due to lack of storage space, all of which has led to problems.