Hi,
you just opened the whole box of Pandora regarding email sending. In the last years more and more techniques are evolved to prevent spam, SPF, DKIM, DMARC to name a view. And if someone argue "it worked in the past for years" it is the best sign, there could be something wrong. We are not anymore in the past ... But seriously, email sending is a complex thing. If someone gets the mail in the spam folder and someone not, it is as best a sign, that in the second case is something wrong with email configuration on the server side. As an example, there is an interesting software called Discourse (http://www.discourse.org/) which heavily based on sending of emails. They give you interesting hints what to do to get the emails running. I quote it here: Email deliverability is complicated. Here are a few important things you should check first: · Be sure to set the notification email from: address correctly in your site settings. The domain specified in the "from" address of the emails you send is the domain your email will be validated against. · Know how to view the raw source of the email in your mail client, so you can examine email headers for important clues. in Gmail, it is the "show original" option in the drop-down menu at the top right of each mail. · IMPORTANT: Does your ISP have a reverse DNS record entered to associate the domain names and IP addresses you send mail from? Test your Reverse PTR record<http://mxtoolbox.com/ReverseLookup.aspx> here. If your ISP does not enter the proper reverse DNS pointer record, it's very unlikely any of your email will be delivered. · Is your domain's SPF record<http://www.openspf.org/SPF_Record_Syntax> correct? Test your SPF record<http://www.kitterman.com/spf/validate.html> here. Note that TXT is the correct official record type for SPF. · Is your domain's DKIM record<http://www.dkim.org/> correct? This will significantly improve email deliverability. Test your DKIM record<https://www.mail-tester.com/spf-dkim-check> here. · If you run your own mail server, check to make sure the IPs of your mail server are not on any email blacklists<http://whatismyipaddress.com/blacklist-check>. Also verify that it is definitely sending a fully-qualified hostname that resolves in DNS in its HELO message. If not, this will cause your email to be rejected by many mail services. · We highly recommend you send a test email to mail-tester.com<http://www.mail-tester.com/> to verify that all the above is working correctly. I recommend mail-tester.com too. It helps really and gives you exact steps to solve problems. The most problem are to solved on the sender’s side. Regards Lutz ********************************************************************** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: http://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **********************************************************************
