Collaborate Disseminate
I am the owner of a domain and all emails to this domain get rerouted to a forward all account.
I’ve been getting the following emails from Instagram:
Needless to say, there is no such email address with that domain.
I’m concerned that ei… Continue reading Asked to confirm Instagram Non-existent Email
I got a strange email and I just want to confirm my suspicions.
For background, I have my own email server which I set up using iRedMail on a VPS. I have an acquaintance who most likely has me on their address book, although I don’t have t… Continue reading What does it mean to get an email from someone with a different actual sender?
Are there any security issues on IMAP or Exchange where you could know whether the server was contacted before or not?
Background: I came across a product that claims that it can identify whether you have contacted a mail server via some e… Continue reading By sending an email to a server, can you identify whether it was contacted before?
Here’s an example of the address they’re coming from:
I’m familiar with filtering settings, but how can I filter something that’s different each time?
I understand there are techniques to prevent someone from spoofing your domain in emails.
Is there any guarantee or check that the receiver can do to ensure the sender is authentic?
Gmail shows TLS and signature information, is that suffic… Continue reading Email sender spoofing check from receiver
I am a designer. I have received several emails offering jobs. There is a link. I never click to links in emails. I look at the sender address and look at google to see if it could exist a real firm with that name. Most of the time I see n… Continue reading Emails with links offering job
First of all, I am not using CRES, but many of our clients use it. I want to know the best approach to manage all communications with our clients that use CRES.
I want to avoid using CRES webmail services to answer any CRES email. For leg… Continue reading How to deal with Registered Envelope Service (CRES) if you are not using this service
I am currently reading on DKIM authentication for email and I would like to manually try to run through it (to facilitate my understanding of DKIM), but I would like to verify if it is possible to do so.
My intended steps to run through t… Continue reading How do I run through the DKIM authentication?
I’ve just received two emails in a row stating that “We detected something unusual about a recent sign-in for the Microsoft account” and “someone else might have accessed the Microsoft account…” (see image attached). Seems a little “phis… Continue reading Microsoft account security alert – Is this legit?
I was surprised to notice that sending email from a local server account allows any user to send a message with:
From: whatever@whateverdomain
This is a security issue, because it allows identity spoofing.
When sending email from a local… Continue reading Postfix pickup daemon "from:" verification