RegEx - Looking for emails inside of a log file

Question

I am looking for a regular expression that will test for matches against a string such as:

mxtreme1.log:May 12 07:00:00 10.1.1.175 postfix/cleanup[48145]: C2C9FFA730: fullname=, sender= LOGINNAME @company.com , from=LOGINNAME@company.com, recip=LOGINNAME@company.com, prior=, as_score=0, as_strategy=M, code=W, actions=FFFFFFFFFFFTFFFFFFFFFF, analysis=F000FFF000TTT000F000TFT000000TTSS3000059900033-F1F-FF00000000F000FFF000000000000F1FFF000F000

where the entire part in bold is a match, but LOGINNAME can be any number of random characters.

Any help would be greatly appreciated, Thank you,

Answer 1

That would be something like:

sender=[^@]+@company\.com

(You were explicitly stating that only the LOGINNAME part would be variable.)

Answer 2

To test all of the above solutions, i personally love using 'The Regex Coach'

Just google for that string and its a freeware that has served me well.

PS: I dont own nor have any sort of vested interest in the product or the team that built it.

Answer 3

我很确定在电子邮件地址中逗号不是有效的，因此只要后面总是逗号，您应该可以通过以下方式获得它：

/(sender=[^,]+?),/

Answer 4

Here's the regex for email addresses according to RFC2822 .

It's surprisingly long, but email addresses can be more complex than you may expect.

Just prefix it with /sender\\s*=\\s*/ to only get sender emails.

Answer 5

You can try this:

^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,6}$

But look at this post to get why RegEx and emails address are problematic.

Also this to add the SENDER=:

^[\w]+=[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,6}$