A couple of months in the past it was delivered to our consideration that spam emails containing inappropriate content material are being despatched out and that it seems they’re coming from a Buffer-owned area (buffermail.com). The emails usually are not coming from Buffer or from buffermail.
On this put up, we’ll do our greatest to clarify what has been taking place to date for anybody who has been impacted.
To begin, many people are receiving emails with suspicious headlines like “Good day, e mail id” or “package deal ready.” These emails seem to be coming from a Buffer area. In actuality, we are able to see that they’re coming from one other area and are attempting to masks their content material as coming from Buffer — that is known as e mail spoofing.
We needed to be completely sure that this type of e mail spoofing was certainly the reason for this problem. To verify this, we analyzed the unique mail headers to confirm the place the emails had been coming from. We discovered the headers clearly exhibiting the verification checks had failed as anticipated within the case of spoofed mail. We additionally discovered that the servers sending the emails didn’t belong to us or any providers that we’ve ever used. So ultimately, we had been in a position to affirm that this problem was not a results of a misconfiguration on our finish.
Usually, spam filters from e mail suppliers choose up on this conduct and don’t put that content material in the primary inbox. Nonetheless, there’s at the moment a problem with Microsoft Outlook and Hotmail the place this type of content material just isn’t being despatched to spam folders.
As of January 2023, Microsoft has acknowledged that they’re conscious of this problem and are working to repair it.
We want there was extra we might do on this scenario for the reason that attackers are impersonating a Buffer area — we’ve exhausted our checklist of choices, although, and the remaining work lies with the e-mail suppliers to higher filter these spam messages.
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