It’s a race. If you use cheap, slow email providers, the verification email might arrive 20 minutes later. By then, the RankerX thread has timed out and moved on. You’ve "lost" that backlink. High-performance RankerX setups prioritize fast mail servers specifically to win this race against the timeout clock.
The relationship between RankerX and emails isn't just administrative; it is a tactical battlefield. Here is a deep dive into why your SEO success is actually an email logistics problem.