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I've been using the NS hosting services for about 18 months now, but recently I've been running into various problems with delivery of outgoing messages and possibly false positive trapping of inbound messages.
I currently use Outlook (POP3), sending messages through my domain hosted on NS. Therefore, even though my domain's MX record resides and is being hosted on NS, each message I send contains the dynamic ip address assigned by my ISP. Should I be setting up SPF records on my domain DNS record (also by NS) to prevent my outgoing emails from being rejected by receiving email servers? Is rejection of email from domains without an SPF record commonplace?
Also, we've had numerous situations lately where known messages by customers are simply not arriving in our NS mail (and the sender does not receive any bounce-back). NS does not provide any mechanism where we can see messages that have been trapped by the Spam Filtering system, therefore we have no idea what messages we're missing. This is becoming more frustrating day by day and making me question the reliability of the service.
Are others being affected by an increase in false positive Spam Filtering?
Thanks!
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