I think it is. See recent HN story [1], and specifically the page it links about Sender ID regulations [2]. [1] https://news.ycombinator.com/item?id=31862994 h

I think it is. See recent HN story [1], and specifically the page it links about Sender ID regulations [2]. [1] https://news.ycombinator.com/item?id=31862994 https://news.ycombinator.com/item?id=31862994 [2] https://support.sms.to/support/solutions/articles/43000562659-international-sender-id-regulations-and-requirements-list-of-countries- https://support.sms.to/support/solutions/articles/4300056265...