Hi Monks, I am trying to write a regex that will capture a mail id from a sendmail log file line. When there are a big number of multiple recipients their ids are listed over multiple lines and a number is added to the id: 

# normal line
w7R9Kstc017510: split:

# split lines
w7R9Kstc017510[1]: split:
w7R9Kstc017510[2]: split:

[download]
The regex needs to capture both variations - this is what I tried: 

/(\w+)(?:\[\d+\]): split:/

[download]
But that doesn't capture the normal line.

In reply to Help with regex by bangor

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