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LusoAdmin
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Joined 6 years ago
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Re: Can't send SMTP mail after setting Default Security in Office 365
MarcVHB thanks for the tip, I'll test it for sure and let you know if it worked. This tenant was created just for this purpose, it only have one account 😉 This is the kind of tips and workarounds you expect Microsoft support to know. Thanks55KViews0likes0CommentsSMTP Relay Connector working for one Tenant, Not working for a newly created Tenant
We have had for years a supported Non TLS connector, filtered by fixed public IP Address on O365 that we use to relay email for our printers and monitoring tools. This is set up on a tenant we have for years and It works flawlessly but due to having sold part of our business we need to change this configuration. I thought, "not a problem, let's get a new tenant on a different domain, set it up the same way and it will work". Wrong! Didn't work, supposedly because now Microsoft by default enables Security Defaults on new tenants (Annoying MFA, Etc), sure you can disabled it but still doesn't work at least immediately and support seems to have checked everything I did and reached no brilliant solution.... On why one Tenant works and other won't which is worrying! Just one idea of having something to do with tenant dehydration... They will call me today again to follow this, I'll update this thread afterwards. If someone has any thoughts they will be more then welcome. ( https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/fix-issues-with-printers-scanners-and-lob-applications-that-send-email-using-off )919Views0likes0CommentsRe: Can't send SMTP mail after setting Default Security in Office 365
Same here, old tenant using a non TLS conector to relay email to internal and external email addresses , filtered by Fixed Public IP Address, as supported by Microsoft works perfectly, no Security Defaults or annoying MFA ACTIVE. New tenant, came with Security Defaults active by default (thanks Microsoft), which I have disabled in Azure Portal, doesn't work with the same exact connector configuration! We use this for our multifunctional printers to scan documents.... Spend 1 hour yesterday with Microsoft on the phone, they check both tenants, checked pretty much what i have already checked and reach no conclusion.... They told me that tenant was dehydrated, they would do something on the background and that they would get back in touch today! 2 Days fighting this stupid problem when I have other important things to do!55KViews0likes6Comments
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