Hello guys, thanks for your help
We are running a PHP mailer programm to send emails to our clients. Some of the mailings we do are automated but this is always with approval of the reciever. However sooner or later we always seem to end up being seen as spam, once even our domain was blocked cause we got marked as spammers.
Is there a way to avoid this from happening? maybe use several mailservers, domains, sender email addresses? Are there special mail services for companies who send a lot of emails? or how do the big guys in the business do it, who send a ton of emails a day from an email like email@example.com?
Thanks for any good advice