I need to authenticate clients (traveling salesmen) when sending e-mail. (I want to move away from pop-before-smtp and want to use sasl authentication.) The setup seems to work from the local network (clicking on check supported types gives me the installed choices) and I can send e-mails. However not so from the outside. It's probably a closed port problem. which ports need to be open for this to work? Anyone having experience with this? Thanks Tom
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