Email : How to solve SMTP error 553 received by senders to your email

A few days ago, my email on Outlook started to have issues. I was able to send emails just fine, but there was an issue with receiving emails. People were telling me the email they sent to me would bounce back, giving them “Mail delivery failed: returning message to sender” error. Testing it myself, it turned out that some emails were received successfully by my email client, but most of them were returned back showing that SMTP error 553. In this post, I will show you what I tried and what finally worked for me to solve this issue.

WordPress : How to make email field not required in comments

Recently I was thinking of ways to get more comments on my WordPress blog and one way to achieve that could be making email field optional instead of required as some visitors might be unwilling to share their email just to drop a comment. It turns out this is not as easy as it sounds. It seems the WordPress has Name and Email tied up as you can only make either both optional or both required. This post will show you, how to make email an optional field while leaving name field required.

Contact-Form-7 : How to add class to validation error messages

When customizing the look of the Contact Form 7 plugin in WordPress, you might want to add your own custom classes to either your form tag, form’s individual elements or validation error alert messages. Validation messages use <span> tag that already contains classes defined by the plugin, so we could simply override those classes, but what if we already have our own classes that we want to use? This post will show how to add classes in validation messages and other elements in CF7 plugin.

VS : How to fix stuck Visual Studio Community 2015 installation problem

Visual Studio Community 2015 is the free edition of Visual Studio, so I decided to install it on my computer. Setup contains lots of components, so installation running considerable amount of time was expected, but after 3 hours, it was only 30% finished. Another hour later, the setup was still trying to install the same package. It seemed that the installation got stuck. In this post I will share how I tried to solve the problem and what eventually worked.

ASP.NET : How to solve logging out before timeout expires problem

A while ago I had a task of setting up an old ASP.NET 3.5 application on a shared hosting server and after I was done, the application worked as it should except for one important bit. The application used a Forms Authentication to authenticate users and after users logged in they were getting logging out and redirected to login page after a really short amount of time, usually only after a few minutes.
In this article I will show different ways I tried to locate this problem and how I finally managed to fix this issue.

Blogger : How to fix missing Header Image in Mobile Template

The Blogger platform offers you different mobile templates for your site. You can choose between built-in templates (Simple, Picture Windows,…) or you can select a Custom mobile template, which will adapt your main template to the mobile version. This enables you to have a site with a consistent theme on both desktop and mobile devices. One part that might not be consistent though is with a header image. Depending on the options selected in the Layout section, the mobile template (either custom or built-in) might not show a header image. In this post, we will examine two ways to solve this problem.

Contact Form 7 : How to create a custom URL validation

In WordPress, the Contact Form 7 is one of the most popular plugins for creating contact forms. One thing that you might have noticed though is that the validation of the URL field will not fail when you expect them to fail. For example, with the URL value of http://xxxx, the plugin will consider this as a valid URL, even though, the URL value is missing top level domain part. The solution to this problem is to have a custom validation for the URL field. This article will show you how to achieve that.