Multiple emails sended to one adresse


Hi all,

I need help to a urgent problem that i have with Mailwizz. Some of my contacts received multiple emails during a campaign, some of us received 10x the same email and i don't know why. I don't send multiple campaign to the same time, can you help me ?

thank you very much !


Can you give me more details about the campaign? Was send to a list or to a segment? With what version of the app ? To how many subscribers ?
Hi twisted,

I have 18 lists, some lists contains 1000 contacts, others contains 10 000 contacts, it depends.
I always send campaign to a list (one list at a time), not a segment. The version used is (i'm currently upgrading to due to this problem).