I did contact the Deliverability Department ... They were nice, but really had no insight why my emails only from Constant Contact are being blocked but same emails from my Outlook are not. They gave me a document to send to my clients that gives them instructions how to white list my email, but they already receive it from my Outlook or even my phone when I send it to them. (They are two different sending servers) They also checked the email to see if there were any blacklists of any reason they are being blocked ... and there were none. I am sure the comcast, gmail, aol, hotmail, att email systems are not looking at just the sender email and blocking it, but the IP the server originates from ... that is the only explanation that makes sense ...
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I have read several posts on the issues many are having with their newsletter being blocked by specific ISPs ... I have been having this problem, and this week I send to all "Unopened" from my last campaign an email asking them if they did get my newsletter on 1/8 and just haven't time to look at it, or they never received it ... This was sent from my regular email client using the same return address as the one from Constant Contact ... and there were over 800 on this list of a total list of 1100 ... The overwhelming response was that they never received it as well as the last 2 years of campaigns. Looking at their email addresses ... most are from comcast, gmail, aol, hotmail ... How is this fixed ? I have one good client that is contacting comcast next week to see what she can do on her end ... But constant contact isn't worth anything if you can't get the emails to your clients that have major ISPs.
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