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How to fix “550-previous (cached) callout verification failure” email error

by Visakh S | Oct 12, 2018 | Server Management

Spammers have made life difficult for us all. These days even legitimate mails get snagged in the vast array of anti-spam defenses deployed by companies. One such commonly misclassified anti-spam bounce is: user2@recipient.com SMTP error from remote mail server after...

PHP mail function not working in cPanel – Causes and Fixes

by Visakh S | Oct 12, 2018 | cPanel, Server Administration

PHP applications like WordPress, Joomla etc. send mail using a PHP feature (aka function) called “mail()”. Hackers largely exploit the PHP mail function for spamming. No wonder, Webhosting companies disable PHP mail function on the server as a rule of thumb. This...

Tired of Drupal admin access denied error? Here’s how to fix it

by Visakh S | Oct 10, 2018 | Drupal, Server Management

For as long as Drupal has existed, users have seen this error one time or the other: Access denied You are not authorized to access this page. It might have appeared after a site migration, a server update or for no reason at all. Drupal admins won’t be able to...

2 causes for “550 REJECTED – Bad HELO – Host impersonating [DOMAIN]” & how to fix it

by Visakh S | Oct 9, 2018 | Server Management

Mail errors. They hit you at your most vulnerable, and make you want to smash your laptop. We know. Because we help website owners resolve email errors and other technical issues as part of our Server Support services for web hosting providers. Hosting users...

5 causes for “503 failure of data connection” FTP error and how to fix them

by Visakh S | Oct 8, 2018 | FTP, Server Administration

Errors can be frustrating, especially if they are cryptic, like this: Response: 150 opening data connection Response: 503 Failure of data connection. You know that the connection has failed (obviously!), but where? Here at Bobcares.com, we help Web hosts, VPS users...

Error “550 xxxx is not allowed to send mail from” – 3 Causes and Fixes

by Visakh S | Oct 6, 2018 | Technical Support

Bobcares.com provides Outsourced Hosting Support to Web hosts and other hosting providers. And as part of our services, we resolve technical support queries posted by hosting users. A common email bounce error we see in support requests is: This is an SMTP server at...

24/7 tech support in web hosting – Common pitfalls & how we avoid them

by Visakh S | Oct 5, 2018 | Server Administration

24/7 tech support is now a standard feature offered by all web hosting providers. But some companies do it better than others, and turn it into a way to attract more customers. So, how do the winners do it? They make fewer mistakes than others, and focus on a few key...

How to fix “554 Too many recipients” email error

by Visakh S | Oct 4, 2018 | Server Administration

Here at Bobcares.com, we provide Outsourced Tech Support to web hosting providers. As part of our service, we resolve email errors posted by hosting users. A common email bounce error we see in VPS and Shared servers is: The rejected e-mail address was...

Docker container memory overhead – How to prevent OOM errors

by Visakh S | Oct 3, 2018 | Docker

Many developers now use Docker to host their apps in production servers. But Docker in production servers often cause resource bottlenecks – especially Docker container memory overhead. Here at Bobcares.com, we help web developers and digital marketers to setup...

Apache PCI Compliance : How to avoid Payment Gateway penalties

by Visakh S | Oct 1, 2018 | Apache, Server Administration

Payment gateways such as Stripe and Authorize.net handle billions of dollars worth of business per month. That is why payment gateways and shopping carts are juicy targets for hackers to steal Credit Card info, User identity, etc. As a defense, Payment Gateways...
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