There is no need to use the same service for incoming and outgoing email.
I would suggest:
Incoming (mailboxes @rooshv.com/rooshvforum.network/rok.com) - Yandex for your domain. It's free: https://domain.yandex.com/domains_add/
Or Google Apps, but it costs $50/year/mailbox
Outgoing (from MyBB) - Sendgrid: https://sendgrid.com/pricing
Set MyBB to use Sendgrid's SMTP relay server in: AdminCP --> Settings --> Mail Settings --> Change Mail Handler to SMTP
smtp.sendgrid.net, port 587, use TLS. https://sendgrid.com/docs/Integrate/index.html
Or you can configure your server's email server to pass messages off to Sendgrid for delivery. This is more complicated to set up, but more robust from a performance perspective. https://sendgrid.com/docs/Integrate/Mail...stfix.html
I would suggest:
Incoming (mailboxes @rooshv.com/rooshvforum.network/rok.com) - Yandex for your domain. It's free: https://domain.yandex.com/domains_add/
Or Google Apps, but it costs $50/year/mailbox
Outgoing (from MyBB) - Sendgrid: https://sendgrid.com/pricing
Set MyBB to use Sendgrid's SMTP relay server in: AdminCP --> Settings --> Mail Settings --> Change Mail Handler to SMTP
smtp.sendgrid.net, port 587, use TLS. https://sendgrid.com/docs/Integrate/index.html
Or you can configure your server's email server to pass messages off to Sendgrid for delivery. This is more complicated to set up, but more robust from a performance perspective. https://sendgrid.com/docs/Integrate/Mail...stfix.html