Pay for Sendgrid (100 / day for free is not enough) VS set up your own email server?
For own email server, do you not get flagged a lot as spam ?
Pay for Sendgrid (100 / day for free is not enough) VS set up your own email server?
For own email server, do you not get flagged a lot as spam ?
On your own email server make sure that you have correctly setup dkim, spf, reverse dns, and the ip of server is not on any known denylist - but it still doesn’t guarante that your email server would not get flagged as a spam source.
Or maybe setup transport rules that would try to deliver most emails directly, but to major providers like Gmail/outlook which are quite picky via smtp relay - at work we are using AWS SES to do that, it is not that expensive, but it depends on the volume.
Further, you can use https://mxtoolbox.com to help validate that the record are correct and the IP you have is not on a black list.
You’ll either need to track down the operator of the blacklist and tell them it’s no longer a spam address or, get a different IP from a different provider.
Additionally, to stay off black lists you’ll need to lock down you relay feature so that only mail you want is going out. I.r. don’t allow an open relay from anyone, if you have users, you should throttle them, and probably do outbound spam filtering to protect your IP in the event they use a bad password or something.