Re: [mailop] Office365: only accepts messages from people in its organization or on its allowed senders list

This is a very common issue we see. Best action is to notify an individual at said company and let them escalate. Many times, they will fix it and issue get resolved. Thanks, Michael Irvine | Network Lead Great Computer Solutions O: 847-763-0763 | M: 224-435-6331 E: m...@greatsys.com

Re: [mailop] Ubuntu Noble/24.04 - TLS 1.0, 1.1 and DTLS 1.0 are forcefully disabled

I'm in agreement. I don't see an issue. All the largest providers are minimum TLS. 1.2. We have had many years to migrate. Thanks, Michael Irvine | Network Lead Great Computer Solutions O: 847-763-0763 | M: 224-435-6331 E: m...@greatsys.com W: www.greatsys.co

[mailop] Debt Collection Client Email Servers

Hello postmasters, One of our clients has been sending a debt collection campaign using email as the last resort of communication. These emails are more transactional and use a campaign mailing system to give some analytics. Context: We have 2 standard emails that go our daily. These emails des

Re: [mailop] Debt Collection Client Email Servers

unt of abuse of SendGrid servers, anything you can do to differentiate from their generic naming conventions will help you. On 2024-03-22 12:07, Michael Irvine via mailop wrote: > Hello postmasters, > > One of our clients has been sending a debt collection campaign using >

Re: [mailop] Debt Collection Client Email Servers

hey aren't false spam complaints in the eyes of the people receiving > the email. > > Kent McGovern > > On Sun, Mar 24, 2024 at 10:52 PM Michael Irvine via mailop > mailto:mailop@mailop.org>> wrote: > > Thank you. I will be opening a ticket with them to have

Re: [mailop] Debt Collection Client Email Servers

Thank you everyone. Is there any recommendation on other 3rd party senders that can be trusted instead of SendGrid. My last resort will be to setup some MTA's with the few free IP they have from the Datacenter. I also understand that the client is in the middle of a catch-22 in terms of sendin

Re: [mailop] Debt Collection Client Email Servers

(Sent from iPad) On Mar 22, 2024, at 2:43 PM, Michael Irvine via mailop wrote:  Hello postmasters, One of our clients has been sending a debt collection campaign using email as the last resort of communication. These emails are more transactional and use a campaign mailing system to give

Re: [mailop] Debt Collection Client Email Servers

I made sure our template included the unsubscribe in the correct spot. I also made sure that it was the same font size as the rest of the message so that it is not hidden. I have seen many templates where the unsubscribe and other areas are way smaller than the rest of the email. I don’t see th

Re: [mailop] Off-Topic - VMWare ESXI 7.0

+1 for Proxmox. Hyper-V is a close 2nd. XCP-ng is a name I am hearing more from. I will be testing them in the coming weeks from my labs. Thanks, Michael Irvine | Network Lead Great Computer Solutions O: 847-763-0763 | M: 224-435-6331 E: m...@greatsys.com W: www.greats

Re: [mailop] "The email didn't arrive" to Office 365

If it is Office 365 and not Live/Hotmail, then there are a few more spots. 1) Basic Microsoft Spam Filter. 2) Microsoft deeper check of the links (just had this one give us many issues with the organizations own link showing as phishing). This is in the security center under quarantine. 3) Org

Re: [mailop] Phishing hosted by Cloudflare-ipfs.com / Abuse Handled by Sparkpostmail.com?

This is normally an issue when it comes to SaaS solutions offering a free trial that happens to allow outbound email sending. Scammers will use it as many tend to trust the source. This is true for many senders as I still get at least 1-3 fake document shares a week on my personal Google account

Re: [mailop] Ongoing issue with sending emails to Gmail / Google hosted domains from our MS 365 Tenant

Hi, Please share the Domain name and IP address that is having the issues so that we can better assist. If possible, can you also share the email header of an email that is failing. As for the error, Gmail is clearly seeing an issue with the domain in the SPF and DKIM records. It is very poss

Re: [mailop] TLS inbound to comcast.net

I agree, but only to a point. Cryptographic protocols such as TLS 1.0/1.1 are still usable and strong against attackers with limited resources. The issue is that hardware is now a commodity that is only getting cheaper and more powerful. As such, it is now much easier to break the TLS1.0/1.1 enc

Re: [mailop] TLS inbound to comcast.net

They will not remove it to allow backwards compatibility. They did however move it to Security Level 0 (https://www.openssl.org/news/openssl-3.0-notes.html#:~:text=SSL%203%2C%20TLS%201.0%2C%20TLS%201.1%2C%20and%20DTLS%201.0%20only%20work%20at%20security%20level%200%2C%20except%20when%20RSA%20key%

Re: [mailop] Amusing and Convoluted Request

Now this gave me a chuckle, but sadly is commonplace. I have been in IT for about 20 years, and I still find those that will ask requests that are just plain wrong. Sadly, most of these users are in a position of policy/decision making (C-Suite & Directors). Thanks,   Michael Irvine -Ori

Re: [mailop] Getting Microsoft to delete an impersonation

This is a lot bigger of an issue than just an email. If BofA is allowing accounts to be opened in a company without doing a proper check first, then they have an issue. IF MS Allows it, deleting the email is only a temporary fix as they can choose another spelling of the email and start again.

Re: [mailop] addressing a mail server running in virtual space

As Marco Moock wrote, there is no "hack". Just put the public IP address on the Virtual Server or use a NAT Router between the Virtual Server and the internet.   Michael Irvine -Original Message- From: mailop On Behalf Of Miles Fidelman via mailop Sent: Wednesday, November 20, 2024 15:

Re: [mailop] [ADMIN] list breakage

Thank you. I was wondering why it got so quiet. Thanks,   Michael Irvine -Original Message- From: mailop On Behalf Of Graeme Fowler via mailop Sent: Tuesday, March 4, 2025 10:50 To: mailop@mailop.org Subject: [mailop] [ADMIN] list breakage CAUTION: This email originated from outside o