Cannot send emails from my iPhone whilst abroad

[Jeremy8]

I cannot send emails from my iphone, these were previously working fine, but I can receive them. I am currently abroad.

I have checked my mail settings and these are all correct. The following error message appears ‘ Cannot Send Mail The server rejected one of the recipient’s addresses. The message has been placed in your Outbox.’

[Gondola]

Have you tried sending from webmail?

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If there's a send error then let us know the full error message excluding any actual email address.