"without needing to <verb> + ..." vs "without the need of <verb + ing> + ..."

I don't see which one is fits best:

it is awesome because you can do it without needing to send e-mails

or

it is awesome because you can do it without the need of sending e-mails

Also, are both correct or just one (or none...)?

Solution 1:

The first one is correct. The second one can be corrected as:

It is awesome because you can do it without the need to send emails.

Solution 2:

Here are two samples where "without the need of", not "to", is used:

• Apple's AirPlay May Soon Work Without The Need Of A Wifi Network

• TAX REFUNDS: Income Tax refunds will be devoted each year, as periodic payments, to the plan’s funding until plan completion. The tender of such payments shall deem the plan modified by such amount, increasing the base thereby without the need of further notice, hearing or Court order. In [sic] need be for the use by debtor(s) of a portion of such refund, debtor(s) shall seek Court’s authorization prior to any use of funds.
  — Source

• without the need to + verb
• without the need for + noun