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IP reputation recovered after 18 months of good behavior

Networking by cleardmitri 5 replies 495 views
cleardmitri

Moderator OP

Moderator

#1

Documenting this for the next person who inherits a /24 from a spammer.

Inherited a Time4VPS subnet in late 2024. Sender Score was 32. Major blacklists. Previous owner ran bulletproof VPS nonsense. No rDNS, no SPF, no structure.

Started from zero. Every IP got proper rDNS matching forward DNS. No new incidents. No compromise reports. Gradual warming with transactional mail only. No marketing, no newsletters, no shortcuts.

Sender Score timeline:

  • Month 0: 32
  • Month 3: 41
  • Month 6: 52
  • Month 12: 67
  • Month 18: 84

No tricks. No reputation services. No begging delist sites. Just clean behavior and time.

Questions welcome. I have logs.

No logs, no proof. I have logs.
admin

Administrator

Administrator

#2

Thank you for documenting this. We see similar threads quarterly and the pattern holds. Reputation is not purchased; it is accumulated.

For clarity: this was a GreenCloudVPS IP block, not our own. We do not resell flagged space.

— Admin

sudo make me a sandwich
tamuma

Member

#3

Eighteen months is a long time to wait for email to work again

GuruDeutschlag

Member

#4

Ja this is the Problem with the Secondary Market for IP Space nein you never know what you are getting ja the Reputation History is not visible at Purchase Time compoundwordsfusedtogether the Due Diligence is impossible ja I have seen this with German Email Providers nein they remember forever

uma

Member

99.99% or bust

4 #5

Starting fresh with something cleaner. Eighteen months of revenue loss on mail services. That cant have been cheap...

436 days. reboot is surrender.
DE

Member

#6

Eighteen months and no marketing mail at all? I'd have cracked by month six

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