@nikolaus-riehm Hi, Great to hear about your story. You did great so far. But if you want to have an on-premises email server you need to e...

@crackdj Hi, Sorry to hear about the trouble. Is it a new installation? What procedures you followed and what is the OS of the system? Regar...

@max_s It is kind of split domain situation. Only modifying SPF and DKIM will not help us here. Did you take a look at this: Split Domain Rega...

@frakka Hi I could understand your concern. Could you please send an email to (marketing@zextras.com) with the details you desired to know about ...

@z2c Hi, Thanks for asking and spreading the information. Yes, it should be. Just make sure after all the changes milter service is restarted an...

@elding Hi, Please don't say that. No one knows everything. We all are exploring and learning by sharing information.And yes it would be better i...

@frakka Hi, About this issue, Exchange ActiveSync is not part of Carbonio CE. So if you want to login into your mobile APP, you have to use the us...

@frakka Hi, Please accept my sincere apology for missing out your posts. 🙏 Regards, Sharif

@elding Hi, Try with the password: root@mail:~# /opt/zextras/common/bin/mysqlcheck --defaults-file=/opt/zextras/conf/my.cnf --all-databases --a...

@elding Okay. It seems your database has the right version. Can you take snapshots/backups before performing any troubleshooting steps: Like ro...

@elding Hi, Don't worry about the question. Could you please tell us something more: Like Is it a new installation ? What is the version? O...

@max_s Could you please tell us more? like how does outlook.com authenticate?How you have configured the mail flow? Regards, Sharif

@max_s Also, could you please check if this helps or not: su - zextras carbonio prov mcf +zimbraMtaSmtpdSenderRestrictions "permit_sasl_authenti...

@max_s Hi, What @anahuac and @stefanodavid are saying is right. But I think here what is happening is that your Carbonio CE server has strict ant...

@max_s Hi, Could you please help me understand the scenario.So the outbound.protection.outlook is your relay host configured in Carbonio CE for e...