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Occasional Contributor
Occasional Contributor

gmail, outlook and optus 4g mobile broadband

hi, trying to set up gmail IMAP through Outlook 365 and Optus 4g mobile broadband


despite following all of gmail suggestions (less secure apps, IMAP enabled etc) keep getting authentication/time out error:


sending - reported error (0x800ccc0f) - connection to server was interrupted. Please contact your service administrator or ISP


Mail app on windows 10 works only for receive (cannot send either). Just outlook 365 which has the send errors (I can receive Gmail no problems through outlook).


My Outlook 365 settings are:


POP/IMAP account settings

Name: my name

Email address: my gmail address


Server info:

Account type : IMAP

incoming mail server:

outgoing mail server:


Logon info:

username <my>

password : my password

remember password Yes

Require logon using secure password authentication NO


Outgoing server:

My outgoing server SMTP requires authentication YES

Use same settings as my incoming mail server YES




Server Port numbers

Incoming server IMAP: 993

Following type of encrypted connection: SSL/TLS


Outgoing server SMTP: 587

Following type of encrypted connection : STARTTLS


Server Timeouts

2 mins



Root folder path - blank


Sent items: Do not save copies of sent items Yes



Any help appreciated! Very frustrating! Have disabled windows defender firewall.

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Frequent Contributor
Frequent Contributor

Re: gmail, outlook and optus 4g mobile broadband

Hey @DanielT74, thanks for reaching out. I'm sorry to hear of the issues you've had getting your email set up!


In cases such as these, I'd recommend getting in touch with our Tech Support team in regards to this one using our Live Chat service or over the phone on 13 13 44. If you do continue to have issues, please let us know and we'd be happy to assist however we can. 

I’m part of the Yes Crowd team, employed by Optus to help run our online community. This guide explains how everything works on here and you should also check out our Community Guidelines.

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