You need to install the `sendmail` package on your VPS as well as your local machine. Assuming you use some form of Debian linux, you want to run:

    sudo apt-get install sendmail

on the VPS.

You need to install a Mail Transport Agent (MTA).

First, let&#39;s install `postfix`, which provides a `/usr/bin/sendmail`:

    apt-get update
    apt-get install postfix

A configuration screen will pop up, where you need to enter some configuration values. This really depends on your setup. The standard installation is &quot;Internet site&quot;, where mail will be sent directly from your server. You can also configure it to relay mail through an external mailserver, which may be preferable if you don&#39;t want to deal with SPF, TLS, reverse DNS, etc. But the specifics of the configuration is outside the scope of this question (just Google it, or post a new question if you get stuck).

I have a conflict when using System.IdentityModel.Tokens :

    using System;
    using System.Configuration;
    using System.Data;
    using System.Data.SqlClient;
    using System.IdentityModel.Tokens;
    using System.IdentityModel.Tokens.Jwt;
    using System.Text;

    public voidGenereToken()
    {
        const string sec = &quot;401b09eab3c013d4ca54922bb802bec8fd5318192b0a75f201d8b3727429090fb337591abd3e44453b954555b7a0812e1081c39b740293f765eae731f5a65ed1&quot;;
        var now = DateTime.UtcNow;
        var securityKey = new InMemorySymmetricSecurityKey(Encoding.Default.GetBytes(sec));
        var signingCredentials = new SigningCredentials(securityKey,
                SecurityAlgorithms.RsaSha256Signature, SecurityAlgorithms.Sha256Digest);

        var header = new JwtHeader(signingCredentials);

        var payload = new JwtPayload
        {
            {&quot;iss&quot;, &quot;a5fgde64-e84d-485a-be51-56e293d09a69&quot;},
            {&quot;scope&quot;, &quot;https://example.com/ws&quot;},
            {&quot;aud&quot;, &quot;https://example.com/oauth2/v1&quot;},
            {&quot;iat&quot;, now},
        };

        var secToken = new JwtSecurityToken(header, payload);

        var handler = new JwtSecurityTokenHandler();
        var tokenString = handler.WriteToken(secToken);
        Console.writeLine(tokenString)
    }

I get following error when I create header (*var header = new JwtHeader(signingCredentials);*) :

&gt; Argument type &#39;System.IdentityModel.Tokens.SigningCredentials&#39; is not
&gt; assignable to parameter type
&gt; &#39;Microsoft.IdentityModel.Tokens.SigningCredentials&#39;

I don&#39;t understand because all my type refers to *System.IdentityModel.Tokens*.
and in documentation [JwtHeader Constructor][1] need *System.IdentityModel.Tokens.SigningCredentials*

I don&#39;t know what&#39;s wrong ... 

  [1]: https://msdn.microsoft.com/en-us/library/dn451132(v=vs.114).aspx

Conflict between System.IdentityModel.Tokens and Microsoft.IdentityModel.Tokens

In [this][1] page, it is said that: 
&gt; [...] skip-gram inverts contexts and targets, and tries to predict each context word from its target word [...]

However, looking at the training dataset it produces, the content of the X and Y pair seems to be interexchangeable, as those two pairs of (X, Y): 
&gt; `(quick, brown), (brown, quick)`

So, why distinguish that much between context and targets if it is the same thing in the end? 

Also, doing [Udacity&#39;s Deep Learning course exercise on word2vec][2], I wonder why they seem to do the difference between those two approaches that much in this problem: 

&gt; An alternative to skip-gram is another Word2Vec model called CBOW (Continuous Bag of Words). In the CBOW model, instead of predicting a context word from a word vector, you predict a word from the sum of all the word vectors in its context. Implement and evaluate a CBOW model trained on the text8 dataset.

Would not this yields the same results?

  [1]: https://www.tensorflow.org/versions/r0.9/tutorials/word2vec/index.html#vector-representations-of-words
  [2]: https://github.com/tensorflow/tensorflow/blob/master/tensorflow/examples/udacity/5_word2vec.ipynb

CBOW v.s. skip-gram: why invert context and target words?

Locally a Rail app works well, but on a VPS server when I try to send an email with all the correct settings by the means of the Rails app, I get this error in the logs:

    sh: 1: /usr/sbin/sendmail: not found


How to fix it?

&quot;/usr/sbin/sendmail/&quot; Not found

Locally a Rail app works well, but on a VPS server when I try to send an email with all the correct settings by the means of the Rails app, I get this error in the logs:
<pre><code class="hljs language-javascript">sh: 1: /usr/sbin/sendmail: not found
</code></pre>
How to fix it?

I am doing email validation in Rails with:

    validates_format_of :email, :with =&gt; /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\z/i

Also, I do HTML5 validation in the frontend but email addresses like

    ..abc@gmail.com
    .abc@gmail.com

still are valid. What am I missing?

Email validation in Ruby on Rails?

I know that this issue has been posted many times, but for me it seems to be a different problem.

Indeed, this error 

&gt; Warning: require(vendor/autoload.php): failed to open stream: No such file or directory in C:\xampp\htdocs\site_web\send_mail.php on line 3
&gt;
&gt; Fatal error: require(): Failed opening required &#39;vendor/autoload.php&#39; (include_path=&#39;C:\xampp\php\PEAR&#39;) in C:\xampp\htdocs\site_web\send_mail.php on line 3

appears at the begining of my code from this line:

    require &#39;vendor/autoload.php&#39;;

So, I guess there must be a /vendor/autoload.php file somewhere in my computer (I have installed composer and ran `composer require phpmailer/phpmailer`).

So, I looked for this file using: `dir /s autoload.php` in the Windows command line, and found one here: `C:\Windows\SysWOW64\vendor\autoload.php`,

but for me, **syswow64** folder has nothing to see with **autoload.php**, I don&#39;t see what I am missing here.


require(vendor/autoload.php): failed to open stream

I am trying to show my markdown email on view, but there&#39;s something wrong on my mail view, it shows like

    ErrorException in FileViewFinder.php line 112:
    No hint path defined for [mail]. (View: /opt/lampp/htdocs/ppsb_new/core/resources/views/emails/tagihan.blade.php)

and my markdown mail view

    @component(&#39;mail::message&#39;)
    # TAGIHAN PEMBAYARAN
    
    Berikut tagihan anda untuk pembayaran
    
    
    @component(&#39;mail::button&#39;, [&#39;url&#39; =&gt; &#39;&#39;])
    wut ?
    @endcomponent
    
    Gunakan kode tagihan tersebut untuk membayar tagihan.
    
    Thanks,&lt;br&gt;
    {{ config(&#39;app.name&#39;) }}
    @endcomponent

and there&#39;s also vendor on my views who have their components.

No hint path defined for [mail] Laravel 5.4

On Android, when the user opens a mail with Gmail and clicks a link contained in the mail, then this URL is opened in sort-of a &quot;mini browser&quot;, with a special bar at the top.

In my case the URL is a Portable Web Application (PWA) and should be opened in the Chrome browser itself (giving the user the possibility to manually add the URL to the home screen).

Is there a way to tell Gmail to always open the URL in the normal Chrome Mobile browser (or the standard browser)?

`target=&quot;_blank&quot;` doesn&#39;t seem to help...

How to prevent links to open in Gmail&#39;s integrated mini-browser

I am using SMTP mail for sending mail using Laravel. Everything working perfect other than office365 mail settings.

Settings I have used is as below:

    SMTP HOST = smtp.office365.com
    SMTP PORT = 587
    SMTP ENCRYPTION = tls
    SMTP USER = username(email)
    SMTP PASS = password

Error i am getting is:

&gt; 554 5.2.0
&gt; STOREDRV.Submission.Exception:SendAsDeniedException.MapiExceptionSendAsDenied;
&gt; Failed to process message due to a permanent exception with message
&gt; Cannot submit message


I have already searched google a lot for this error everybody says about clutter like this link
[Solution to this error][1]
But I personally don&#39;t find any clutter after followed all the steps mentioned.

I cannot log in this email as it&#39;s our client email id and I don&#39;t have permission to log in.

I also created one outlook email id and test this email setting. 
It worked like charm. 
I don&#39;t know what is wrong with Client email id.

Any suggestions would be great.

  [1]: https://support.microsoft.com/en-us/help/3132755/554-5-2-0-storedrv-deliver-exception-objectnotfoundexception-mapiexcep

Unable to send SMTP mails using office365 settings

I use Ubuntu 16.04. When I want to git push origin master I get:

    error: RPC failed; curl 56 GnuTLS recv error (-12): A TLS fatal alert has been received.
    fatal: The remote end hung up unexpectedly
    fatal: The remote end hung up unexpectedly
    Everything up-to-date



How to fix git error: RPC failed; curl 56 GnuTLS

I need to find which version of TensorFlow I have installed. I&#39;m using Ubuntu 16.04 Long Term Support.  

How to find which version of TensorFlow is installed in my system?

I am trying to run docker-compose using sudo.

I have both docker and docker-compose installed on Ubuntu 16.01.

Due to an error while trying to download compose using curl, I ended up installing it using pip.

Docker version 1.12.0, build 8eab29e
docker-compose version 1.8.0, build 94f7016

Yet, when I try to run docker-compose with sudo I get the following (using sudo with docker is fine)

    sudo: docker-compose: command not found



I suppose there are differing definitions of what &#39;installed&#39; means. I have been using docker-compose on the same computer that claims it is not installed.

    $ dpkg -s docker-compose
    dpkg-query: package &#39;docker-compose&#39; is not installed and no information is available
    Use dpkg --info (= dpkg-deb --info) to examine archive files,
    and dpkg --contents (= dpkg-deb --contents) to list their contents.


    $ whereis docker-compose
    docker-compose: /home/user/.local/bin/docker-compose

    $ pip show --files docker-compose
    ---
    Metadata-Version: 2.0
    Name: docker-compose
    Version: 1.8.0
    Summary: Multi-container orchestration for Docker
    Home-page: https://www.docker.com/
    Author: Docker, Inc.
    Author-email: UNKNOWN
    Installer: pip
    License: Apache License 2.0
    Location: /home/anton/.local/lib/python2.7/site-packages
    Requires: six, jsonschema, enum34, cached-property, websocket-client, docker-py, requests, docopt, dockerpty, PyYAML, texttable
    Classifiers:
      Development Status :: 5 - Production/Stable
      Environment :: Console
      Intended Audience :: Developers
      License :: OSI Approved :: Apache Software License
      Programming Language :: Python :: 2
      Programming Language :: Python :: 2.7
      Programming Language :: Python :: 3
      Programming Language :: Python :: 3.4
    Files:
      ../../../bin/docker-compose
      compose/GITSHA
      compose/__init__.py
      compose/__init__.pyc
      compose/__main__.py
      compose/__main__.pyc
      compose/bundle.py
      compose/bundle.pyc
      compose/cli/__init__.py
      compose/cli/__init__.pyc
      compose/cli/colors.py
      compose/cli/colors.pyc
      compose/cli/command.py
      compose/cli/command.pyc
      compose/cli/docker_client.py
      compose/cli/docker_client.pyc
      compose/cli/docopt_command.py
      compose/cli/docopt_command.pyc
      compose/cli/errors.py
      compose/cli/errors.pyc
      compose/cli/formatter.py
      compose/cli/formatter.pyc
      compose/cli/log_printer.py
      compose/cli/log_printer.pyc
      compose/cli/main.py
      compose/cli/main.pyc
      compose/cli/signals.py
      compose/cli/signals.pyc
      compose/cli/utils.py
      compose/cli/utils.pyc
      compose/cli/verbose_proxy.py
      compose/cli/verbose_proxy.pyc
      compose/config/__init__.py
      compose/config/__init__.pyc
      compose/config/config.py
      compose/config/config.pyc
      compose/config/config_schema_v1.json
      compose/config/config_schema_v2.0.json
      compose/config/environment.py
      compose/config/environment.pyc
      compose/config/errors.py
      compose/config/errors.pyc
      compose/config/interpolation.py
      compose/config/interpolation.pyc
      compose/config/serialize.py
      compose/config/serialize.pyc
      compose/config/sort_services.py
      compose/config/sort_services.pyc
      compose/config/types.py
      compose/config/types.pyc
      compose/config/validation.py
      compose/config/validation.pyc
      compose/const.py
      compose/const.pyc
      compose/container.py
      compose/container.pyc
      compose/errors.py
      compose/errors.pyc
      compose/network.py
      compose/network.pyc
      compose/parallel.py
      compose/parallel.pyc
      compose/progress_stream.py
      compose/progress_stream.pyc
      compose/project.py
      compose/project.pyc
      compose/service.py
      compose/service.pyc
      compose/state.py
      compose/state.pyc
      compose/utils.py
      compose/utils.pyc
      compose/volume.py
      compose/volume.pyc
      docker_compose-1.8.0.dist-info/DESCRIPTION.rst
      docker_compose-1.8.0.dist-info/INSTALLER
      docker_compose-1.8.0.dist-info/METADATA
      docker_compose-1.8.0.dist-info/RECORD
      docker_compose-1.8.0.dist-info/WHEEL
      docker_compose-1.8.0.dist-info/entry_points.txt
      docker_compose-1.8.0.dist-info/metadata.json
      docker_compose-1.8.0.dist-info/pbr.json
      docker_compose-1.8.0.dist-info/top_level.txt
    Entry-points:
      [console_scripts]
      docker-compose=compose.cli.main:main


I have tried the following - but still get the same error:

    $ chmod +x /home/username/.local/bin/docker-compose
    $ chmod +x /home/username/.local/lib/python2.7/site-packages






sudo: docker-compose: command not found

I am new to Node Js and Webpack. I tried to start a project with module-loaders.

Firstly, I installed nodeJs and NPM and created a new directory called `tutorial`. I used the command prompt to cd into this directory and then ran the following command `npm init` and then installed webpack via `npm` using the command below : 

    npm install -S webpack

The 1st command installed webpack locally into the project under the &#39;node-modules&#39; directory and I can run my project by doing this: 

    nodejs node-modules/webpack/bin/webpack.js

The problem with this is that I have to place my `webpack.config.js` file inside of this directory which I want to place in my project root.

One solution to this problem was to install webpack globally on my machine    which I did using the command below : 

    npm install -g webpack

This installed Webpack and now I do have a Webpack command. However, this command does not seem to be working or doing anything at all. When I try to run this from my project&#39;s root directroy it does not do anything at all (See Screenshot)

[![enter image description here][1]][1]

Please tell me what I am doing wrong!!

  [1]: http://i.stack.imgur.com/c3NDJ.png

webpack command not working

Upgraded to `Ubuntu 16.04` and facing problem after installing `PHP5`.

**Installed PHP-5 with following:**

    sudo add-apt-repository ppa:ondrej/php
    sudo apt-get update
    sudo apt-get upgrade
    sudo apt-get install php5.5   # for PHP 5.5

Trying to install php-curl but its not working.

    sudo apt-get install php5-curl

&gt; Error: E: Unable to locate package php5-curl



Content Type	Original Author	Original Content on Stackoverflow
Question	user266003	View Question on Stackoverflow
Solution 1 - Email	Technoguyfication	View Answer on Stackoverflow
Solution 2 - Email	Will	View Answer on Stackoverflow

"/usr/sbin/sendmail/" Not found

Email Problem Overview

Email Solutions

Solution 1 - Email

Solution 2 - Email

CBOW v.s. skip-gram: why invert context and target words?

Conflict between System.IdentityModel.Tokens and Microsoft.IdentityModel.Tokens

Attributions