Exim Consulting & Administration

We have many years of experience running Exim based e-mail systems for a large UK ISP and a British university. We can support existing installations of Exim as well as building new configurations from scratch.

Sample Services

A small sample of techniques and technologies we have experience of setting up with Exim includes:

• Spam Filtering
• Virus Filtering
• SSL - Enforced & Opportunistic
• Authentication - Server & Client
• Grey, White, and Blacklisting
• Database Lookups
• Load Balancing
• Rate Limiting
• DKIM & DomainKeys
• SPF & SRS
• BATV

Innovative Solutions

We are keen to apply our expert knowledge of Exim to complex challenges. Examples of innovative solutions we have designed include:

• Accessing Memcached From Exim
• Automatic Whitelisting of Threads
• Automatic Whitelisting of Recipient Addresses
• Expiring E-mail Addresses
• Simple Multi-Client Authentication

Exim Community

We are also very active in the Exim user community. We regularly provide support on the Exim users mailing list, designed and developed the current Exim project website, and have contributed the following bug reports to the development team:

• Sync not enforced during predata ACL
• $smtp_command missing data
• ${extract} error in the untaken branch of a conditional
• Invalid format of logging for DKIM
• log_defer_output option broken
• Enable DNSDB lookup type by default

Contact Us

If it can be done with Exim, we can do it. If it can’t, we can probably suggest alternatives.

contact@cardwellit.com
+44 114 319 0611
4 Paradise Street
Sheffield, South Yorkshire
S1 2DF, UK
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