What causes "Sender verify failed" SMTP mail error, and how to resolve it in...
SMTP error from remote mail server after RCPT TO:<user2@domain2.com>: host mx.server.com [xxx.xxx.xxx.xxx]: 550-Verification failed for <user1@domain1.com> 550-The mail server could not...
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SMTP error from remote mail server after RCPT TO:<user2@domain2.com>: host mx.server.com [xxx.xxx.xxx.xxx]: 550-Verification failed for <user1@domain1.com> 550-The mail server could not...
View ArticleAre your cPanel/WHM, Plesk or DirectAdmin servers infected with CryptoPHP?...
CryptoPHP is a well developed backdoor malware that is spread through themes for popular CMS like WordPress, Joomla and Drupal, etc. It runs a bot in your server, and allows remote control for the...
View ArticlecPanel backup guide - How to define backup policy in a cPanel/WHM server
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No more "Sorry no backups" - Restore backups from any day using open source...
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Reliable, scalable DNS - How DNS clustering and Centralized name servers...
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View ArticleShell shock rescue - Tracing a bandwidth spike to outbound DDoS through the...
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View ArticleCornering an SLA killer - How systematic resolution of an OpenVZ crash...
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View ArticleFault tolerant service logging - How remote logging was made resilient to...
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View ArticleSurviving the blue screen of death - How a Hyper-V Windows VPS fatal error...
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View ArticleGHOST hunting - Resolving glibc Remote Code Execution vulnerability...
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View ArticleSafe data recovery : Dos and Dont's of rebuilding RAID arrays in data centers...
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View ArticleBurning in your new server : How server hardware load testing helps us...
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View ArticleHigh performance e-commerce website - How a Magento e-commerce website was...
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View ArticleE-commerce server optimization - How a Magento e-commerce website was...
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View ArticleAgile infrastructure security - How central configuration management was used...
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View ArticleWeb application security - Why startups can rely on Django security for their...
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View Article3 reasons why Django is the ideal development platform for startups
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View Article2 non-obvious reasons for "550-Please turn on SMTP Authentication" error in...
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View ArticlecPanel mail users frequently reporting "Increment Connection Ratelimit"...
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