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How to fix clamav update database error

How to fix clamav update database error

In our role as Outsourced server support specialists for web hosts, we secure and maintain the servers from attacks and viruses. There are several tools that come in handy, for securing various services.

ClamAV is an open source email scanning program that has an antivirus engine for detecting trojans, viruses, malware & other malicious threats in emails. ClamAV is usually integrated along with popular mail servers such as Exim.

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Fixing email error “435 Unable to authenticate at present” in cPanel, DirectAdmin, Ajenti and other Exim servers

Fixing email error “435 Unable to authenticate at present” in cPanel, DirectAdmin, Ajenti and other Exim servers

Bobcares.com provides outsourced hosting support to web hosts. As part of our services, we manage the tech support help desk of web hosts, and resolve issues posted by web hosting customers.

Many of our customers use Linux servers that run Exim as their mail server. Exim is usually present in web control panels such as Cpanel, DirectAdmin, Ajenti and more.

A common email error that we see in these servers is 435 Unable to authenticate at present. This is faced by email users when they try to send SMTP authenticated mail through the Exim server either through webmail (eg. Horde) or from an external mail service provider (Eg. Google’s Gmail). (more…)

How to resolve “550 Access denied – Invalid HELO name” error from Outlook (0x800ccc78), Windows Mail, etc in DirectAdmin Exim mail servers

The mail user reports the error:

Task user@domain.com – Sending reported error (0x800CCC78): ‘Cannot send the 
message. Verify the email address in your account properties. The server 
responded: 550 Access denied – Invalid HELO name (See RFC2821 4.1.1.1)

Corresponding entry in Exim logs say:

2014-09-24 07:06:31 H=isp-ip-dom.net [xxx.xxx.xxx.xxx] rejected MAIL 
<user@domain.com>: Access denied - Invalid HELO name (See RFC2821 4.1.1.1)

At Bobcares help desk support services, this is a common error we see in DirectAdmin shared hosting servers. Strict anti-spam rules or lack of SMTP authentication usually cause this error.

 

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Given below are a few scenarios we’ve encountered, and the solutions we provided for them. (more…)