Hi everyone, I have a client who uses MailChimp. Now, I have noticed that for this particular customer's campaigns, MailChimp does not always appear to attempt to initiate (not a failed negotiation etc.) STARTTLS when talking to our mail server. It does sometimes, but not always.
While I completely accept that our mail server could be at fault, the GPT encryption graph also indicates their domain has a very poor inbound TLS rate. MailChimp is one suspect, there are others which are being investigated. It would be super helpful if any mailbox provider here could tell me what they see with MailChimp regarding TLS. Thanks in advance, Ken. _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
