> No "ordinary" human account would be a string of alphanumeric characters
Even though here are some great answers and this will be some type of
account testing, there are
some institutions/universities primarily in south east asia where the
mails are in a student id format
which often are a combination that may look like "s8d2x1".
This is not fully uncommon.
Mit freundlichen Grüßen
Lukas Adrian Kron
Geschäftsführung
Bitte denken Sie an die Umwelt, bevor Sie diese Nachricht drucken.
l.k...@lugges.eu, www.lugges.eu, +49 2302-9838905
lugges UG (haftungsbeschränkt), Heintzmannstraße 174, 44801 Bochum
Amtsgericht Bochum, HRB 19066, GF.: Lukas Adrian Kron
Am 27.05.2025 um 02:08 schrieb J Doe via mailop:
Hi,
I operate a small mail server for a non-profit organization. Over the
last two weeks or so, I have observed servers connecting and
attempting to deliver to non-existent addresses.
Ordinarily it's pretty easy to figure out what's going on ... they are
approximations of accounts such as: first-initial-last-name@domain,
which I am assuming are e-mail list validation services or possibly
people attempting to deliver to a mistyped account name, but now I am
seeing delivery attempts for a seemingly random list of alphanumeric
characters - for example, something like: s8d2x1@domain.
Does anyone see deliver attempts like this ? No "ordinary" human
account would be a string of alphanumeric characters and while this
might be a list verification service with a bug, there seems to be a
fair number of attempts.
What could this be ?
Thanks,
- J
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