email failed delivery

Mail (El Capitan): Mail troubleshooting

Mail (El Capitan): If you can’t send messages

Mail not sending or receiving messages after updating OS X

As a backup, if you have emails in your account inbox, select the mailbox, then Mail/Mailbox/Export Mailbox, and export the mailbox to your Desktop. Then go to Mail/Preferences/Accounts, select the account, and delete it using the minus sign. Quit/reopen Mail and add the account back. Test. If necessary, to recover missing emails, use Mail/File/Import to import the mailbox on your Desktop. It normal shows in the On My Mac section. Drag emails to the account inbox if desired.

During the last couple of days I can send e-mail from Mail (to other @icloud.com of @gmail.com users), but not to specific recipients on provider KPN in the Netherlands (@planet.nl @on.nl @hetnet.nl).

This happens when I am connected to the internet via provider Ziggo.

But when I used mobile 4G or a modem connected to KPN the e-mails can be send.

Please check your IP. Maybe apple is blocking it.

<a href="https://infoflopay.com/">Thanks</a>.

It could also be that you are in a country which Apple doesn't support.

<a href="www.infoflopay.com" rel="nofollow noopener">Thanks</a>