That's awesome, thank you!

Looks like @Osvaldo was able to get it.

@Dashrender said in O365 Outbound email issue:

@JaredBusch said in O365 Outbound email issue:

For the record, even though I made the above connector and it failed to verify, I did save the connector. Apparently, that was enough as email is sending now.

So which connector is solving this - the TLS regardless of cert condition, or the No-TLS

I only left the TLS regardless of cert, so it has to be that one.

@BraswellJay said in Email phishing attempt against one of our vendors was successful ...:

Enough to sting but not crippling to us or the vendor involved.

Thankfully!

Date/Time issue?

What about archiving instead of backup? MailStore is good

@Natchos said in 3rd party spam filter solution pricing:

We have been using MS Exchange Online Protection for the last 8 years. It's been working good with our on-premise Exchange server.
Price we pay is 18.99$ per user per year. We are almost at 50 users.

I signed up for this. It was only $1/user/month

Switched things today. So far, all is working normally.

@dbeato said in 550 5.0.350 Remote server returned an error:

@WLS-ITGuy said in 550 5.0.350 Remote server returned an error:

@dbeato said in 550 5.0.350 Remote server returned an error:

@WLS-ITGuy said in 550 5.0.350 Remote server returned an error:

571 Delivery not authorized, message refused

That messages means a lot of things but yeah Whitelist on their Spam Filter end, Adding your IP to your SPF record, check if there is anything on the body of the message triggering the block on their end (i.e. URL or site link).

It is Office 365 with Exchange - I have created all the records that Microsoft wanted me to.

So, just to be clear, this is 100% not on my end, correct?

It shouldn't be on your end, the message is coming from the recipient's end server.

Right, which means that they received it.

@scottalanmiller said in How to handle inbox with multiple users in Zoho or O365?:

@Dashrender said in How to handle inbox with multiple users in Zoho or O365?:

@scottalanmiller said in How to handle inbox with multiple users in Zoho or O365?:

@Dashrender said in How to handle inbox with multiple users in Zoho or O365?:

What I don't know is, can more than one person share an alias address in Zoho?

No, you'd need a distribution list for that. An alias can only point to one thing.

Well the distro list would get you incoming, but not outgoing ability on that address.

https://help.zoho.com/portal/community/topic/how-do-i-send-an-email-from-the-group-email-address-i-e-from-sales-mycompany-com

Zoho Groups allow it.

So does Office 365/Exchange. I now have about 10 domains where we have users with their own respective groups for domains that they need to send out from. The main issue with this is dealing with mobile devices; there isn't a way that I know if to send from a group.

@anamanp said in Office 365 NDR for strange email address.:

@Romo Can you please tell me if this was resolved?

Yes, his reply with the solution was three above your post.

Rules set on OWA to keyword autoforward. The account was compromised.

@Emad-R said in Researching Mailing List Email Server Options:

So you dont want the SMTP server part, just the sending to many and if a user opt to be removed that will auto reflect ...

Either way. If we handle the SMTP that's fine. If we don't, that's fine.

@IRJ said in Email investigation - have we been hacked?:

@Dashrender said in Email investigation - have we been hacked?:

one of the addresses is for an @ameritrade.com address, but only for one person. I have yet to find any connection via google searches between this person and ameritrade.... so I'm not sure why this was tried?

Thoughts?

You dont have that data either, right?

What do you mean?

@Dashrender Confirmed, our MailCow is using ActiveSync to my phone, works beautifully.

@Pete-S said in MailCow Command Line Reference:

@scottalanmiller said in MailCow Command Line Reference:

@Dashrender said in MailCow Command Line Reference:

@Pete-S said in MailCow Command Line Reference:

If you don't intend to use the webinterface then what purpose does mailcow have?

You could just install dovecot, postfix etc for email and sogo for calendar and have the same thing without the middle man. I bet you have to tweak config files even with mailcow.

I'm assuming Scott is asking about management stuff - he wants to script that stuff, not GUI manage it.

Right. GUI is fine for low capacity sites. But we are looking at two use cases both in the 10K+ range.

But mailcow doesn't add any functionality that the original packages don't already have. It's just a wrapper. Is it not?

Mostly. But it is handling the testing and integration of the components, which is the hard bit. It's actually doing a fair amount of work. I've built an extremely similar system in the past and the effort was quite large for just the "wrapper" bits that they are doing 😉

And the central API is a huge deal.

@wrx7m said in Exchange 2016 - NDR:

@scottalanmiller said in Exchange 2016 - NDR:

@Natchos said in Exchange 2016 - NDR:

@JasGot Awesome, thanks for the input. I'll look into SPF.

SPF is considered a requirement these days. And DKIM is heavily recommended.

People are starting to come around. I have been using DKIM for a few years for all services sending email outside our org. With O365, SPF and DKIM are part of the setup.

Same with Zoho.

@sully93 said in Simple Password Compromise on MailGun:

@scottalanmiller, which service did you go with after dropping MailGun? We are looking at a relay service and have MailGun on our list. This is a bit concerning that they shut you down like that. We're also looking at Postmark and SendGrid.

We made the call to just move to Zoho and get email hosted. We've been super happy with Zoho.