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    IPv4

    Need some IPv4 space, can anyone help?
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    IPv4 Space

    Been looking for /19 and cant find it anywhere. Does anyone know a place I can buy this?
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    Hosted SMTP Server HELO setting

    BTY - here is the bounce back with the error code. Looks like the IP that is rejecting the HELO is Barracuda <john.doe@example.com> 111.222.3333 does not like recipient. Remote host said: 550 No response to HELO/EHLO Giving up on 111.222.3333 --- Below this line is a copy of the message...
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    Hosted SMTP Server HELO setting

    This is interesting. There are 3 areas in the header which references the received from information. So I am using Barracuda antivirus, and all of the outgoing emails are sent through the barracuda IP address. This is shown in the top portion of my headers. Example below Return-Path...
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    Hosted SMTP Server HELO setting

    Sending emails for about a year. Roughly 10,000 new email addresses a month, plus another 10,o00 follow ups from previous. All bounces are removed properly, as are replys and unsubscribes. The interesting thing is the server IP from the example (XXXXX), has no sender score. The prompt...
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    Hosted SMTP Server HELO setting

    Hello all, I need some help understanding the correct way to configure my HELO IP to ensure email delivery. We have a dedicated SMTP server hosted offsite and we use a third party email marketing platform to send emails. The hosting company has control of our domain, and set up the SPF and...
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