Not exactly, hosting, but this has worked for me: NameCheap forwards mail from my domain email address to a free Yahoo mail account. Yahoo mail allows for send

Not exactly, hosting, but this has worked for me: NameCheap forwards mail from my domain email address to a free Yahoo mail account. Yahoo mail allows for sending mail from a custom "from" address, masking my Yahoo address. I'm not an expert on DKIM/DMARC but it seems that the ymail.com domain (different from yahoo.com) has few restrictions on rejecting messages. It's worked pretty reliably and includes iOS Push support, though due to seemingly slow IMAP servers and a web interface that could use some improvements, I think I'll be switching to zoho, fastmail, or rackspace one of these days for better reliability.