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Re: Using Thunderbird (or other email clients) with Office 365 servers

  • Subject: Re: Using Thunderbird (or other email clients) with Office 365 servers
  • From: "Ian! D. Allen" <idallen [ at ] idallen [ dot ] ca>
  • Date: Tue, 26 Feb 2019 12:37:35 -0500
On Tue, Feb 26, 2019 at 09:31:06AM -0500, J C Nash wrote:
> I've been trying to get a connection from TBird to the uOttawa Office 365 setup.
> So far:
> - tried IMAP -- after query have been told uOttawa has decided to block IMAP and POP.

I'm curious about the above statement, since I use submission/POP3 to
Algonquin College for my "alleni [ at ] algonquincollege [ dot ] com" email and the
domain name I use is a generic Microsoft domain both ways.  uOttawa can't
block POP3/IMAP since they can't block the port on the Microsoft domain,
but maybe they can disallow authentication once connected?  (But then
how does "Exchange" authenticate?)

To send College email I (using postfix) connect to the "submission"
port (597) at outlook.office365.com and log in using my Algonquin
email address.  I gather uOttawa won't let you log in?  The "From:"
field on any email I send has to match my Algonquin email address or
else the message is rejected.  Whatever name text I use on the From:
line is replaced with the College standard "Ian Allen".

To receive email (using fetchmail) I connect to the POP3 port at
outlook.office365.com and log in using my Algonquin email address.
I gather uOttawa won't let you log in?

> Note that my fallback is to reset on NCF, with uottawa forwarding.

Yes, when Algonquin used in-house email and blocked POP3/IMAP, I used
to forward all Algonquin email to another machine that did allow POP3.
Once Algonquin moved to Office 365, POP3 came with it, so I stopped
forwarding.  Have you tried POP3 to outlook.office365.com ?

I used to send official College email from my usual mail host, but with
the "From:" line set to my College email address and the "Reply-to:"
line set to idallen [ at ] idallen [ dot ] ca.  That started going into spam folders
this month, so I started using the College "submission" port instead.

I use a "mutt" send-hook to rewrite my "From:" address whenever any
recipients are at the College, and a postfix transport map to send any
email destined to the College into the College submission port.

-- 
| Ian! D. Allen, BA, MMath  -  idallen [ at ] idallen [ dot ] ca - Ottawa, Ontario, Canada
| Home: www.idallen.com   Contact Improvisation Dance: www.contactimprov.ca
| Former college professor (Free/Libre GNU+Linux) at:  teaching.idallen.com
| Defend digital freedom:  http://eff.org/  and have fun:  http://fools.ca/

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