An introduction will fail if it's based solely on what the asker wants. The request must clearly articulate a compelling benefit for the target. Merely admiring someone is not a valid reason, as it asks the connector to burn their social capital for a one-sided benefit.
The initial request email must be a self-contained, easily forwardable tool that makes the connector look good and requires zero extra work. This reframes the task from merely asking a favor to providing the connector with a valuable networking opportunity they can easily share.
While platforms like LinkedIn DMs or text messages are common, they are ineffective for introduction requests. They are not designed to be professionally forwarded, making the connector's job difficult or impossible. Email is the only medium that supports the seamless, double opt-in intro process.
The person requesting the introduction is the 'pursuer,' not the 'prize.' Sending your Calendly link first subtly implies the target should conform to your schedule. Instead, propose specific times manually to demonstrate flexibility and respect for their time. Let them offer their own scheduling tool.
When an introduction request goes unanswered, it is acceptable to send only one polite follow-up. Sending more than one crosses the line from professional persistence to desperation, which damages your relationship with the connector and violates the respectful spirit of the double opt-in process.