Harsh Jain a écrit : > Hi, > Thanks guys for your comments. I guess I wasn't clear enough in my > first email. We are not sending SPAM, but mostly a combination of > 1) Invite friends messages.
As you probably know, this one is problematic. you need to watch for abuse before it becomes "invite a victim". ideally, users should invite their friends using their own mail account. unfortunately, there is a problem with webmail users who can't simply click on a "invite" link. if you should send the message, make it concise, clear and provide a link to report abuse, unsubscribe, ... do not forget that most users have a limited understanding of how mail/web/... work, and that those who invite can mistype addresses. so design your systems for these cases. > 2) Welcome to the site. if you mean after user register, this should be ok. but be "concise" here. > 3) Forgot password. similar to 2) > > For messages of type (1) we are OK being very conservative. Yesterday > Google temporarily blocked my IP when I was sending around 500 of the > type 1 messages. I thought that was due to postfix sending messages very > quickly and hence I came up with above parameters. I guess i need to > rework them. > you need to get a good reputation at the recipient side. there are many things to consider, none of which is related to postfix configuration (don't forget that spammers too can configure their MTA). so don't focus on tuning postfix. instead select a good domain, use the right headers, ... etc. and encourage users to whitelist you or tag your mail as "non spam".
