In the face of filtering anti-spam deployed by ISPs on the internet, the emitter of emails must respect some simple principles in order to achieve satisfactory deliverability of his or her messages. Contacting an optimized database of opt-in recipients combines with the use of reliable technical solutions and the prompt handling of possible complaints.
The most elementary method to limit the impact of anti-spam on your campaigns is to send messages to the recipients who are really interested. Thanks to an "opt-in" approach, the issuer ensures the real interest of the prospects and avoids a classification or a rapid detection of its emailing as spam. The optimization and cleaning of this contact database over time remains paramount: it is strongly recommended to privilege quality to quantity. By removing incorrect addresses or inactive subscribers for several months, the sender restores his or her reading rate and mechanically improves his or her reputation on the Internet.
The issuer may suddenly find him or herself faced with complaints related to the spam filtering of his or her messages for no apparent reason. These alert signals must make it possible to check whether the STMP servers used for routing are efficient, well managed and trusted, in particular with respect to the different spammer blacklists. You also need to make sure that each campaign uses the same IP address. These reminders should be dealt with promptly by the ISPs, providing the services concerned with proof of their good faith and the lawfulness of their communication, under the risk of rapid blacklisting.