Improve deliverability to the Gmail accounts
We look forward to see how to solve this dull problem.
The Gmail spam filters do not scan only the email body but also some mail server settings.
Some more bits: https://mail.google.com/support/bin/answer.py?answer=81126
One of those is the SPF (Sender Policy Framework) that has to be set within the DNS configuration and that we highly recommend.
SPF specifications are basically to set a TXT record with a "rule" to validate a SMTP client.
How to? http://www.openspf.org
For our clients, rules are already set. Free to send your marketing campaigns with a better deliverability.
Still searching for a e-marketing service? http://invio.innove.it
Here is a little tutorial on how to install SpamAssassin on Windows Server 2008 as system service: Download and install the binary version of SpamAssassin (for example http://www.jam-software.com/spamassassin/) Download NSSM (http://iain.cx/src/nssm/) and put the nssm.exe...