blplaques

I am actually going to be moving to SMTP. I just needed to find a good one.

The webiste I am working on right now is brand new and I learned a lot about the way email.is being handled now.

When I ran an email report on my server I was seeing that I was getting this error

ECDHE-RSA-AES128-GCM-SHA256:128 CV=yes: SMTP error from remote mail server after end of data: 550-5.7.1 This message does not have authentication information or fails to pass\n550-5.7.1 authentication checks. To best protect our users from spam, the\n550-5.7.1 message has been blocked. Please visit\n550-5.7.1 https://support.google.com/mail/answer/81126#authentication for more\n550 5.7.1 information. h63si78177ite.149 – gsmtp

My form was sending to a GMAIL account. Gmail was blocking the email because SPF/DKIM/DAMRC/rDNS were not set on the server to resolve the server.

I am not sure what type of hosting that you are using, but it is something that you may want to look at.

I used this website to run some scans and it showed the issues.

https://mxtoolbox.com/

I just had this issue with my site. It has to do with the domain not having the correct SPF DKIM and DMARC and rDNS records.

The mail was being processed by the server, but in my case Gmail was bouncing it back. But without the proper records basically GMAIL did not trust the sender.

I am not sure if this is your exact situation. But once we added the records email came right through.