I cannot send emails via Outlook

[mintech]

Yesterday (Tuesday 22/03/2022)  TPG called me and we went through all email account settings and changing outgoing mail port setting from port 25 to port 587

After this change one test email has been sent successfully, but next one stuck in Outbox again.

TPG person said that probably my email is blocked and she was going to investigate.

My issue started exactly a week ago and to date is not fixed by TPG.

[BasilDV]

Hi @mintech

Are you still not able to send out email using the slave account only?

If yes, have you tried to revert it to port 25?

Is there any error message when sending emails?

BasilDV

[mintech]

Yes, still not able to send out email using this slave account

Yes, I have tried to revert it to port 25 - no success

I do not get any error message when sending emails - email just stuck in the Outbox and won't move

Could be Office 365 issue? how to check this?

[BasilDV]

Thank you @mintech.

If the slave account is working via Post Office, then it may be possible that it is an issue with Office 365.

But will check it first with our Post Masters and provide you with the updates once available.

BasilDV

[BasilDV]

Hi @mintech

Did you try sending an email today? 

If not, are you able to send a test mail?

If yes, what is the subject of your test mail today?

BasilDV

[mintech]

Yes, still the same problem

This morning I’ve reinstalled Office 365 - but still no success

[mintech]

I've performed Outbound SMTP Test which failed - see attachments

[david64]

@mintech . Looking at Outbound ip address 2.jpg, the 255.255.255.0 is your local netmask. Login to your router and find your wan ip address and put that in the smtp test.

There is still the detailed logging option in Outlook. Also, you can try sending an email using Telnet SMTP commands. Instructions on internet.