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How do you make sure email you send programmatically is not automatically marked as spam?
...DNS information for your site.
Check your reverse DNS to make sure the IP address of your mail server points to the domain name that you use for sending mail.
Make sure that the IP-address that you're using is not on a blacklist
Make sure that the reply-to address is a valid, existing address.
U...
How do you include Xml Docs for a class library in a NuGet package?
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Jerther
4,40344 gold badges3232 silver badges5151 bronze badges
answered Mar 7 '11 at 1:07
John NelsonJohn Nelson
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Java: Path vs File
...ered Oct 30 '14 at 16:31
Don CheadleDon Cheadle
3,69333 gold badges2828 silver badges4343 bronze badges
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Missing return statement in a non-void method compiles
...iles.
I know that the statements after the while loop are unreachable (dead code) and would never be executed. But why doesn't the compiler even warn about returning something? Or why would a language allow us to have a non-void method having an infinite loop and not returning anything?
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svn: replace trunk with branch
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Ray Koren
60899 silver badges2222 bronze badges
answered Dec 1 '08 at 16:47
Aaron DigullaAaron Digulla
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Difference between Dictionary and Hashtable [duplicate]
...)
A subtle but important difference is that Hashtable supports multiple reader threads with a single writer thread, while Dictionary offers no thread safety. If you need thread safety with a generic dictionary, you must implement your own synchronization or (in .NET 4.0) use ConcurrentDictionary<...
How is Racket different from Scheme?
... is a descendant of Scheme. How is Racket different than R6RS? What did it add, or take away, or is just different?
6 Answe...
Check if a JavaScript string is a URL
...-z]{2,}|'+ // domain name
'((\\d{1,3}\\.){3}\\d{1,3}))'+ // OR ip (v4) address
'(\\:\\d+)?(\\/[-a-z\\d%_.~+]*)*'+ // port and path
'(\\?[;&a-z\\d%_.~+=-]*)?'+ // query string
'(\\#[-a-z\\d_]*)?$','i'); // fragment locator
return !!pattern.test(str);
}
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Clearing purchases from iOS in-app purchase sandbox for a test user
...ave many test accounts associated to one email. Gmail for example lets you add a "plus" string to the email to create aliases for an address: so tester+01@gmail.com and tester+02@gmail.com both really just go to tester@gmail.com. Probably other email hosts do the same. When you create a test account...
Algorithm to find Largest prime factor of a number
...The best known method for factoring numbers up to 100 digits long is the Quadratic sieve. As a bonus, part of the algorithm is easily done with parallel processing.
Yet another algorithm I've heard of is Pollard's Rho algorithm. It's not as efficient as the Quadratic Sieve in general but seems to b...