Bug infested Microsoft ESMTP MAIL Service
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Microsoft Corporation, despite its vast wealth and vast programming resources, just can not create bug-free software despite the indecent amounts of money it demands for its over-priced software products.

Thankfully we use free Linux where quality is more important that Microsoft's obsessive lust for other people's cash.

Free Bugs with every Microsoft software

appears to us to be a de facto Microsoft promise.

Keen to prove nothing changes at Microsoft, its Microsoft ESMTP MAIL Service has bugs in it, just like the rest of Microsoft's operating systems and applications. Embarrassed by the large quantity of bugs it keeps producing, Microsoft sometimes calls its bugs a facility or a feature or even a possibility

One bug, which annoys its non-Microsoft victims, is Microsoft's inability to recognise standard email server (SMTP) error codes like 550.

Mail servers all around the world recognise 550 error codes as meaning

The email is undeliverable, so please stop trying to send it to us.

However Microsoft, which thinks it owns the world and the Internet, has decided that error code 550 should mean keep trying every 8 minutes night and day.

Microsoft's avoidable ignorance and persistence creates lots of unwanted entries in the recipients' mail servers logs, usually one set of entries in the general log and another in the error log. This can increase log sizes by several Megabytes.

Some folks get irritated by Microsoft's unwillingness to obey universal Internet standards. The folks think arrogant M$ is sabotaging the Internet, perhaps by careless accident, by inflicting its bug-ridden, and not comprehensively tested, products on the unsuspecting public all around the world.

These are a few of the many Microsoft ESMTP MAIL Service mail servers ignoring 550 error codes from our properly configured and properly run mail servers.

75.148.172.218
hayesindustries.com Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675

79.121.237.235
maila.asianstar1016.com Microsoft ESMTP MAIL Service (no version number)

80.112.222.95
server1.Istinto.local Microsoft ESMTP MAIL Service, Version: 6.0.3790.3959

81.142.74.49
ageconcernsabe.org.uk Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675

82.154.251.253
mail.hmconsultores.pt Microsoft ESMTP MAIL Service, Version: 6.0.3790.1830
mail.hmconsultores.pt Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675

84.245.23.218
ex2010-cashub02.argeweb.local Microsoft ESMTP MAIL Service (no version number)

87.117.229.228
WIN-2P4IVFCBVF0 Microsoft ESMTP MAIL Service, Version: 7.5.7600.16385

108.175.200.137
oconeemarine.com Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675

120.151.177.235
galsrv1.galvatech.local Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675

121.223.213.245
woollahragolfclub.com Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675

150.101.224.128
prestigewalkerville.com.au Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675

188.39.51.182
remote.ukgooddeals.com Microsoft ESMTP MAIL Service (no version number)

188.203.66.94
mail.fidesvgm.nl Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675

196.214.73.170
adstudio.co.za Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675

203.150.230.37
EDC-NW-SRV Microsoft ESMTP MAIL Service, Version: 6.0.3790.3959

212.143.127.20
server.Cadron.local Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675

217.41.10.68
mail.quoraconsulting.com Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675

See Linux : A realistic alternative to Microsoft

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11 December 2013