Verification Code Mail is delayed

If you have greylisting enabled in your mail filter, that is likely the cause.  You may want to start a real Sophos Support case at https://support.sophos.com for further investigation.

Hello,

Thank you fro your response, le me check with our sysadmin.

Regards,

Diamondra

Hello,

Thank you fro your response, le me check with our sysadmin.

Regards,

Diamondra

But why when I click "Modifier la Methode MFA" th email is coming quickly ?

Regards,

Diamondra

The MFA email comes from Azure which uses a bunch of different IPs for sending emails, randomly ... greylisting affects these.  the other email requests you are talking about I believe come from a much smaller set of originating IPs which typically email filters that use greylisting learn rather quickly.  This is just based on past experience with other customers of mine.