Weird server reply

[clementrx]

Hi !
I'm using Blastula to send me a mail everyday with github actions.
It seems that each sundays I get the following error :
Error in curl_fetch_memory(smtp_server, handle = h) : Failure when receiving data from the peer Calls: source ... %>% -> smtp_send -> <Anonymous> -> curl_fetch_memory Execution halted Error: Process completed with exit code 1.

When I tried in local i got :
Error in curl_fetch_memory(smtp_server, handle = h) : Weird server reply

Do you have an idea ?

thanks