Looking at banners doesn't answer your original question.
These responses: 220 ******00*******************************************0****0****0 **********************200**22****20 *0*00 Are typical of PIX. There's many others in the results file that don't identify a particular mail server.
Aside from that, to find out what they actually use, you should have sent an email that would bounce (or generate a reply of any sort), then examine the headers. Or, use a search engine to find postings to some mailing list from someone at the company in question and do the same thing.
Looking at banners doesn't answer your original question.
These responses: 220 ******00*******************************************0****0****0 **********************200**22****20 *0*00 Are typical of PIX. There's many others in the results file that don't identify a particular mail server.
Aside from that, to find out what they actually use, you should have sent an email that would bounce (or generate a reply of any sort), then examine the headers. Or, use a search engine to find postings to some mailing list from someone at the company in question and do the same thing.