site email contact form not sending to certain email addresses
Hello, a client is using CPanel and his zencart contact form will not send to his main domain email address, although when changing the email address in the "From" field to another email, his contact form works.
We have tried numerous email transport methods and also about 7 different email addresses into the "From" email address field. 3 emails seem to work fine but the others (all from different servers) seem to send mail, but nothing comes through to those email addresses.
We have no spam filters on these account and think this may be a CPanel or email hosting issue, can anyone else think of why emails from the zencart contact form would work under some addresses and not others (which we know are working email addresses)?
Many thanks for any ideas,
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