A client recently asked about what self-hosted email marketing software packages are available. Searching on the web, I couldn't actually find a good list of self-hosted packages, as most people outsource their email fulfillment nowadays. That being said, in certain cases it may make more sense for a company to manage newsletters in house. There are a few scripts, both commercial and open source, available:
Commercial:
Active Campaign - http://www.activecampaign.com/pricing/?version=downloaded
OEMPro - http://octeth.com/oempro/
Interspire Email marketer - https://www.interspire.com/emailmarketer/
Green Arrow - http://www.drh.net/greenarrow-engine/
Pro-tip: When comparing software packages, check out the release notes to determine frequency of updates:
http://docs.octeth.com/docs/oempro/version_log/
http://www.interspire.com/support/kb/questions/1061/Interspire+Email+Mar...
Open Source:
Sympa - http://www.sympa.org/
PHPList - http://www.phplist.com/details
DadaMail - http://dadamailproject.com/download/
ListServ / MailMan - the classic mailing list managers - likely aren't appropriate for non-technical marketing managers.
Open Source CRMs with built in Mailing List Management:
SugarCRM - http://www.sugarcrm.com/download
OpenCRX - http://www.opencrx.org/
One important factor to note is most of these software packages do not help you setup your mail server in a newsletter-friendly fashion (DKIM, SPF records, etc...), meaning if you do plan to use one of these packages you still must invest some time into ensuring email actual makes it into peoples inbox. See:
http://mailchimp.com/resources/guides/email-delivery-for-it-professionals/
http://blog.wordtothewise.com/isp-information/
http://econsultancy.com/us/blog/8054-15-best-practice-tips-for-improving...
