Mandrill 在点击跟踪时支持的最大 URL 长度是多少？
What is the maximum URL length that Mandrill supports when click tracking?
根据their documentation，如果链接太长，Mandrill 将不会添加点击跟踪：
Some internet browsers and email clients break links that are over a certain length. If Mandrill detects that adding tracking information could create links too long for these email programs and browsers, tracking data won't be added
但是，他们没有指定长度是多少。
有谁知道允许的最大长度是多少？
根据this tweet from @mandrillapp，
URLs longer than 255 bytes won't have click tracking applied.
根据their documentation，如果链接太长，Mandrill 将不会添加点击跟踪：
Some internet browsers and email clients break links that are over a certain length. If Mandrill detects that adding tracking information could create links too long for these email programs and browsers, tracking data won't be added
但是，他们没有指定长度是多少。
有谁知道允许的最大长度是多少？
根据this tweet from @mandrillapp，
URLs longer than 255 bytes won't have click tracking applied.