(I'm not sure whether this is the right place to ask this question, but I don't know a better one.)

I work in a very small software company. We sell our applications using resellers (which provide e-mail notification for each purchase) and directly. Currently, the quotes and invoices are plain office documents. I'm searching a (preferable linux server based) software which allows to

  • manage our customers
  • allows to create quotes, invoices and associated documents
  • can send them to customers
  • tracks the e-mail communication
  • can be extended, so the reseller e-mail notifications automatically can be integrated into the system

How such kind of software is named? What concrete suggestions do you have? Thanks in advance.

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If this question does not belong to superuser, please move it to the appropriate place, but don't close it without an answer. – Mike L. Jan 12 at 20:21
There is no appropriate place, otherwise it would have been moved – random Jan 12 at 20:34
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closed as not constructive by random Jan 12 at 20:11

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