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Stay informed and inspired with our blogs to navigate and resolve any technical challenges that you may encounter.
Exim mail forwarding – Best practices to avoid IP blacklisting
Mail forwarding is a boon to email users. It helps to collect all your emails at a single account. Unfortunately, when you have setup too many email forwarders it can result in server IP blacklisting. To avoid this, we need to configure Exim mail forwarding properly....
“DNS Blackhole Lists in Plesk”- The way we used it to prevent spam
Every day, a lot of people use email. It's one of the keys for quick and easy communication. Unfortunately, junk mail, more commonly known as spam, is one of the big problems of the email. With hundreds of spam in your inbox, you can lose the important email. That’s...
Sendmail dead but subsys locked – Here’s how to fix it
An option to send emails is a required feature in any web app. And, for handling mails, we need a mail server. Many people prefer to run Sendmail as the mail server as it is free and easy to setup. Unfortunately, many times these mail servers fail with errors like...
The right way to fix Relaying Denied in Outlook
Emails are always a part of our daily life. It is one of the best communication medium. But, what will you do if you are getting an error like “Relaying Denied” in Outlook while sending an email? Many times, despite changing mail settings, the error remains. That’s...
How to avoid emails going to spam in Gmail?
Mail providers like Gmail always try to give a good user experience. Therefore, they automatically filter junk mails to Spam folder. But, what if even valid mails from your server end up in spam ? All of your email customers complain about missing mails. That's why,...
Top LetsEncrypt SSL renew errors and their fixes
LetsEncrypt make SSL website hosting easier. And, it allows users to secure their websites free of cost. But, websites need to follow LetsEncrypt SSL renew process every 90 days. Fortunately, there are ways to automate this task. However, SSL renewals often return...
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Roundcube SMTP error 250 authentication failed – Here’s how to fix it
Authentication errors are always annoying, especially when you're sure the logins are correct. One such error in Roundcube is "SMTP error 250 authentication failed". This usually happens when customers try to send emails from their Roundcube webmail client. At...
What is Lightsail AWS?
In these days of cloud computing, server tasks have become more common. Faster and simpler cloud solutions are always in demand. That's where Lightsail AWS solution helps. AWS Lightsail is one of the easiest ways to start with your own private servers. At Bobcares, we...
RAID resync – Best practices
RAID aka Redundant Array of Independent Disks provide fault tolerance to your servers. But, what if there are errors within your RAID array? Unfortunately, that can result in loss of data. RAID resync helps to keep the disk data in sync. At Bobcares, we regularly...
Add Swap partition on an Ubuntu server – 2 different ways explained
It's common that many services fail due to memory crunch on the server. That's where the role of swap space come into picture. And, it's true that swap partition can improve the performance and stability of the system. At Bobcares, we help server owners to add or...
MySQL cluster vs Galera – How to make the right choice
Databases are literally the heart of any application. As the app becomes popular, the read/write access to databases also increases. Unfortunately, it can become a bottle neck for your application performance too. That's where database clustering like MySQL cluster,...
Rsync ‘Permission denied’ for root – Top 4 reasons and solutions
Rsync is a great tool for replicating a single file to entire filesystems. It always provides smooth data transfer. But, it's quite common to get frustrated with rsync. One such frustrating error is "rsync permission denied for root". At Bobcares, we help server...
