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DoohickyMicky
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Joined Jan 27, 2023
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On Premise Exchange 2019- Issue sending to external addresses
This is my first on-premise Exchange setup since back in 2008SBS, so please forgive my ignorance...lots has changed. My 2019 Exchange setup is being created for around five users in a small office, so we'd like to keep things simple. No smart connectors. Simple direct connection to ISP via firewall. Not worried about receiving mail from external sources for the time being. External Domain name: example.com hosted on a standard webhost which hosts our website Internal/local Domain Name: whatever.example.com I'd like the mail to show as coming from example.com. My internal e-mail all works fine. However, when I send to external addresses, the e-mail is blocked as Junk by the external SMTP server (my ISP's server) because the outgoing mail comes from my internal server/domain (whatever.example.com) - which of course doesn't exist externally, so it is marked as SPAM by the ISP. Yet, when I run the testconnectivity (Outbound SMTP) tool, it passes with a warning about an SPF record (which, of course, doesn't exist for whatever.example.com). I'm sure I'm missing something simple, but my searches have come up empty so far. Any direction would be appreciated. In the old SBS editions, a person could simply enter the SMTP FQDN of the ISP and external SMTP worked...that's sort of what I'm hoping to emulate. Thanks!2.4KViews0likes3Comments
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