Western wrote:
Spanky wrote:
Sending isn't the problem. It is receiving the email.

Now I'm confused! If you have Darren in your list of contacts & you have sent him mail, wouldn't your ISP allow you to receive mail from him? I know that mine would. Worst case, the message would go into my Junk Mail folder but I could access it from there. It would still come thru.
Do you have some sort of "white list" that limits who you can receive mail from? Do you have to add people to a listing somewhere that your ISP will not filter? My Dad had this sort feature from a previous ISP & it was more of a PITA that it was worth!
I've never had this sort of problem.
Berk answered this correctly, Verizon is likely blocking anything from Costa Rica.
Spam filters work several ways and before it hits your inbox, it's scanned. What you see is stuff that is making it past the ISPs filter.
To keep it simple, every country is assigned IP addresses for in their country. How they distribute them is up to the country. US is the biggest holder of IP addresses. Anyways, there are services that compile these lists and then post them for spam filters to check against as each email is received. If the senders email is coming from a server with an IP address listed in the filter, that email will bounce back to the sender.
Hope that explains everything to ye.
Cheers!