Comcast Blocking List Emails?

Bartbolger wrote...
Our list emails seem to be blocked (since about June 11) only to Comcast customers.
https://lists.riseup.net/www/info/corvallis_progressive_events_calendar
Have there been similar reports from other list admins?
Comcast has been no help so far. They've bumped my report up to the next level of tech support but nothing heard from them for several day.
The emails don't go into the Comcast spam folder--several members have checked--and I'm not getting bounce notices.
Thanks for any info.
Bart
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Roadrunner replied...
Hi,

For a couple weeks the lists.riseup.net mailservers were listed on the SORBS blocklist, if comcast is using that, that might have caused the problem. But they aren't listed on SORBS anymore, so if that was the cause then it should be gone now.
Are you still seeing new bounces?

Thanks
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Bartbolger replied...
Roadrunner, thanks for that info. But we sent out an email this morning and it was not received by at least two subscribers with Comcast email addresses. I received it with my RiseUp and via a Gmail account. Thanks, though.
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Bartbolger replied...
Problem solved. Comcast was blocking (shunting to spam) our emails because of 'suspicious' links. Their security and privacy section of tech support changed a setting and we're getting through to Comcast customers again. Thanks.
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Roadrunner replied...
Ah great! Were there bounce messages that gave details of why they were blocking or were they just silently discarding?

I'm glad you got it solved!
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