email - Silverstripe Email sent via Contact Form does not arrive

Question

in a recent project I integrated a custom Contact Form which uses the silverstripe Email Class. Unfortunately the sent E-Mails do not arrive at the client. It seems to depend on the host/domain of the target E-Mail Address. E.g. gmx does work (but spam), but receiving the mails on the E-Mail Address of the client does not work at all (hosted at united domains). Thanks, Florian

Answer 1

The Email class in SilverStripe is admittedly not the greatest ;) But apart from potential lowlevel encoding errors, email delivery mainly depends on factors outside of SilverStripe. You can start debugging mailservers, DNS records, spam headers, bounce emails, etc - but in the end its probably far easier to leave email delivery to a SaaS-provider like SendGrid or MailChimp. Both have offerings where you can just point your PHP configuration to their SMTP servers. SendGrid has a nice best practice collection on what to watch out for when sending emails in general.