Tag Archives: Sendmail

MIMEDefang – processing the valid users list ( filter_recipient() )

Posted on February 5, 2012 by danmassey99

I’m rebuilding our spam scanning platform at the moment and making some changes/improvements along the way. One of our issues was that we want to show customers ‘just how bad it is’ without spam scanning and so would like to … Continue reading →

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Testing SMTP-AUTH from the command line

Posted on January 4, 2012 by danmassey99

I’m building a new pair of ‘mail-relay’ servers for customers to mail out through. Customers can only use SMTP-AUTH to send mail, but i needed a method of testing the mechanism. Actually I’ll be using MySQL based usernames and passwords, … Continue reading →

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Notes on the Vacation program – multiple aliases

Posted on October 2, 2011 by danmassey99

Is it possible to have multiple aliases with vacation? Yes! Imagine you have a sendmail setup with a virtusetable that looks like this: fred@domain_name.com fred fredrick@domain_name.com fred fred.bloggs@domain_name.com fred And you want to use vacation for an out of office … Continue reading →

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Final Virtusertable Perl Sort

Posted on September 29, 2011 by danmassey99

As the final stage of the sorting posts, I’ve converted the original virtusertable sort to the ‘Schwartzian Transform’ with multiple sorts. Notice i create the ‘sub arrays’ with 3 items: $_[0] = “user@domain <whitespace> target” $_[1] = “domain” $_[2] = … Continue reading →

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FreeBSD, Sendmail, Dovecot mail server build

Posted on September 3, 2011 by danmassey99

Due to one of our mail servers developing an ‘unresolvable hardware issue’ the project to consolidate the mail servers has been brought forward! We’ll be using an HP DL185 with 8GB RAM, 1 x QC CPU and a boat load … Continue reading →

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