[MlMt] Disable IPv6 in MailMate

[Stijn Jonker]

Hi,

These things like prefer IPv6 over IPv4 are and should be operating system items and not application settings. The only thing you might want to consider is to disable IPv6 on your Apple device. (Which is not actually recommended as IPv6 is the future and IPv4 the past).

The only real solution is for your employer to either offer IPv4 only or a working dual stack config (i.e. IPv4 and IPv6). They now provide a working alley (IPv4) with a broken highway (IPv6).

Stijn


On Wed, Jul 3, 2019, at 21:17, Zi Yan wrote:
> Hi Stijin,
> 
> Because it is the only workaround provided by my company. My company 
> uses Exchange server, which provides IMAP service via 
> outlook.office365.com. My guess is that outlook.office365.com has both 
> IPv4 and IPv6 addresses, but my company internal Exchange server only 
> has IPv4 addresses and IPv6 seems preferred over IPv4. As a result, when 
> outlook.office365.com relays the email request to my company mail server 
> via IPv6, no connection can be made, leading to errors.
> 
> Maybe a better solution would be a “prefer IPv4 over IPv6” setting?
> 
> 
> --
> Best Regards,
> Yan Zi
> 
> On 3 Jul 2019, at 13:50, Stijn Jonker via mailmate wrote:
> 
> > Yan,
> >
> > Why would you want to disable this, if the service you are connecting 
> > (IMAP of your company) doesn't support IPv6, it would (should) not 
> > have an IPv6 address entry in DNS. So if Mailmate would lookup the IP 
> > address for imap.example.com it would only get an IPv4 address and 
> > connect only over IPv4 and not even attempt IPv6.
> >
> > Stijn
> >
> > On 3 Jul 2019, at 17:18, Zi Yan wrote:
> >
> >> Hi,
> >>
> >> My new ISP provides native IPv6, which is great, but my company IMAP 
> >> mail server does not support IPv6. I just wonder if there is a way of 
> >> disabling IPv6 in Mailmate. It would be even better if I can disable 
> >> IPv6 for a specific account.
> >>
> >> Thanks.
> >>
> >> --
> >> Best Regards,
> >> Yan Zi
> >>
> > -- 
> > Yours Sincerely / Met Vriendelijke groet,
> > Stijn
> >
> > _______________________________________________
> > mailmate mailing list
> > mailmate at lists.freron.com
> > https://lists.freron.com/listinfo/mailmate
> 
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