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4

You need a PTR record that resolves 128.199.39.109 to the hostname of your sending server. Might also want to look into SPF records for your domain too.


3

No one other then the recipients mail provider can definitively answer this question for you. The typical way of handling the problem would be to find the details of the connection from your log server and ensure that the recipients mail server accepted the email. Then call up the recipients mail provider and and ask them what is going on - or if the ...


3

Everything turned out to be much simpler than I thought - SpamAssassin had nothing to do with it and the SPF rule rejection was happening on the exim level. I modified the exim configuration to include the IP of our online store server into trusted SMTP list - and everything is now working correctly.


2

When I try to send email to @gmail address the DSN has value of 2.0.0, but when I put my dorporate e-mail address it says 2.6.0. 2.x.x is a successful delivery, so your email is being accepted and queued for delivery by the remote mail server. Can someone please give some explanation on this? I have a theory that corporate mail server is somehow ...


1

If the mail isn't getting delivered to the clients you should be getting bounce messages. Your email server log should give you some hints as too what is happening. In most cases, it should show the message being delivered to their mail server. If their server is receiving the email, then the problem would be on their end. Try to contact their ...


1

If the client requires emails are sent "from" their domain, then they need to add an SPF record for your services, validating this is as an approved endpoint. The include: mechanism in SPF may be the way to go. Do you host your own mail services? If so, you likely already have an SPF record. You could encourage your client to add a line such as ...


1

The benefit of this is to know that if I choose to disable some specific cipher, which clients is it likely to affect, just like the SSL labs tests show for web clients. You don't need to restrict yourself to a specific cipher, but instead simply enable all ciphers which are acceptable to you and in the order you prefer them. The resulting cipher then ...



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