On 04/26/2016 02:14 PM, Jim Ohlstein wrote:
However if I search at https://www.spamhaus.org/lookup/ I see:
104.250.154.20 is listed in the SBL, in the following records:
SBLCSS 104.250.154.20 is not listed in the PBL 104.250.154.20 is not listed in the XBL
And if you follow the SBLCSS link, it's generic and not particularly helpful.
It looks like your DNS and SPF are OK. Are you DKIM signing your outgoing list mail and does your outgoing MTA identify it self as lists.c2.social? These things can help.
Also, you don't publish a DMARC policy (I don't either), but the lack of one, even if it would be p=none, can count against you. See, e.g., https://support.google.com/mail/answer/81126
-- Mark Sapiro mark@msapiro.net The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan