keep getting email back which would not be delivered during order.

[youstar]

CLOSED

[mytheory.]

Hi,

Yes, chances are your customer did not receive the emails sent from your shop, well in actuality your server. We've had this similar issue with couple of customers... when they made a purchase or created an account, normally the shop would automatically send them an email, but if their email server rejects your shop's email it will get "bounced" back to you, and the intended recipient never receives it.

After a lot of research, I managed to fix this issue in most cases... Now I don't know what your server settings are so modify accordingly. First thing is to go to this site: http://www.mxtoolbox.com/diagnostic.aspx and run the SMTP diagnostics for your domain name/IP. If you see any yellow or red circles than you need to fix those errors... they should all be green. Some email servers aren't very strict, but most have some measure in place to protect against spam, so it is a good idea to fix those errors to minimize your server being flagged to the blacklist or just being blocked by your customers' email servers.

Without knowing more it's difficult to say what needs to be done, and if you even have the flexibility to make those changes on you server. But the 2 issues we had was making sure that our IP address resolved to a domain name and that our reverse dns matched our SMTP banner. For the first, our host has a option where we can change the rDNS to which our IP address resolves to... so we just edited that field from something weird and long (iguess a default thing for the server) to mail.domain.com. So now this test shows that our IP address resolves to a domain name, mail.domain.com instead of something suspicious.. again some servers are more strict than others, originally we had it resolve to our IP address followed by our host, but a more strict server still wouldn't let this pass, we had to change this setting to show that in resolved to a name with our domain in it. Basically, it's best to have it resolve to something with your domain name in it and not to your own IP, other IP, numbers, or your host.

For the second one, we had to modify OUR email server settings, so that the banner matches your rDNS (resolved address from above). When you run this test at the top you will see a line of text (aka banner) in larger, bolder font above the results. If successful it should say something like "220 mail.domain.com" if the mail.domain.com does not match what you declared from the first issue you need to change your settings to match accordingly. Now there is no one fix for all... if your using hMailserver or some other email server app than you will have to research how to make those changes via other online help. If your server uses postfix and you have access to modify those files via shell than I can be of further assistance.

At the least you might just want to ask your host to make these changes for you, or if that's even possible. And keep in mind there could be alot of other issues (not just the 2 from above) that could be preventing your emails from being received.

HTH!