@CCShane wrote: olathe5 -- Unfortunately, 25 is the limit. Have you tried Nomorobo "https://www.nomorobo.com/"? I use this in conjunction with the block call, I also use my phones built in blocking.
UH WHAT? That IS the Comcast system... already. NoMoreRobo only allows 25
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This is an informational post for anyone who might have this problem.
Have you ever sent an email that seemed like it flew but never reached the recipient? You thought it sent OK, because you didn't get a 550 bounceback, and the recipient didn't find it in their spam folder either? You're using SMTP AUTH and all is good on your end, nothing has changed?
This frustrating problem could be caused by the fact that your IP is being flagged for improper MX records on Comcast's servers. If the IP is flagged for being "dynamic" it is considered a possible problem for spam, and listed in something called the DUHL at sorbs.net You can verify this by entering your IP address in the SORBS database and you will get confirmation of it.
It doesn't mean you were reported for spam, just that your ISP's MX records need to be changed. That SORBS listing is something automatically used by providers like Yahoo, Gmail, Hotmail, and iCloud to flag mail. The mail ends up being nipped at the server level, and no reject message is ever sent to you, and it doesn't appear in the recipient's spam folder. The problem is further exacerbated by Comcast's techs who have NO IDEA what this is about and will refuse to help you even at level 2 and 3.
After many frustrating calls over a period of two days, I had one tech last night tell me "We don't do SORBS". I laughed and said, "However, SORBS does YOU", and therefore YOU need to fix this for me.
Note the keywords in the letter "Your ISP should be able to help you with this change; it is easy for them to do. The IP will not be de-listed until this change is made. " But getting them to do it is another thing... My problem started Friday noon when they admittedly 'upgraded' my mail server. Bingo!
Here is the actual response I got from SORBS to my query: (with my IP info removed)
This is not a SPAM listing. The SORBS DUHL listing is used to list Dynamic IPs. Unfortunately a Dynamic IP cannot be removed from the DUHL list, since that is what the DUHL list is, a list of dynamic IPs. When the IP was listed, or why you are using the IP, has nothing to do with it. If this address is actually static, the regional Internet registry contact for the address (your Internet service provider) should contact us with details of their statically and dynamically assigned ranges.
Further to prevent relisting the reverse DNS names should be set to indicate static assignment. Delisting is also possible by having the reverse DNS set to the same as the MX record for a domain. However, please be aware that the DNS PTR, MX and A records should have a minimum Time-to-Live of 12 hours. What identifies the IP as dynamic, are the markers in the PTR. For example; key strings like dhcp, pool, dyn, cable, DSL, dial, cpe, cust, RES, IP address, etc.
You may want to review our Dynamic IP FAQ at: http://www.sorbs.net/delisting/dul.shtml "The reverse DNS PTR record for the IP address involved needs to map back to the name given in the MX record, and to have a TTL of at least 43200 seconds (12 hours)." Your ISP should be able to help you with this change; it is easy for them to do. The IP will not be de-listed until this change is made. If the ISP, cannot change the PTR to the MX record name, then adding the word "static" to the PTR would make the IP static; it could then be removed from the DUHL list. Note that it needs a TTL of at least 43200 seconds (12 hours).
Eric SORBS Technical Support
Now, why doesn't Comcast train its techs to recognize this problem??? It is easier to blame the user I guess.
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I pay almost $3.00 a month so that my Comcast phone number stays UNLISTED and PRIVATE. I have never used this number with anyone, nor have I given it to anyone. The number is only used to call my blind mother and even she doesn't know what it is. However, if you Google your private number, you will see that sleazy sites like OK Caller have it along with your full name and address! The only way these numbers could have gotten out is if Comcast GAVE IT OUT. Why are we being charged? Now I am listed on a spam site, when I have never made ONE phone call to ANYONE from that number other than my mother. Perhaps the FCC ought to look into this. <edited>
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Let's face it, Comcast has had MAJOR issues since merging with Time Warner. I have a client who cannot send either anymore. Mail 'times out'. NOTHING is wrong with her computer. Mail is set up the same as it was before the merger, password is correct, permissions all set and HD in good condition. Why won't Comcast admit it's them not her? She can receive mail but all replies and new mail will not go out, server 'times out'.
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