I have the same issue, nothing works (host : infomaniak)
Tried to add SMTP auth in the sendmail function without any success… There is no details in the logs.
WP Mail SMTP is working and send emails successfully, how can I force MailPress to use it to send ?
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2012-06-28 11:27:09 000000 — MAILPRESS [NOTICE] – Connecting to viuzcom1 (MP_Mail send)
2012-06-28 11:27:09 000000 — MAILPRESS [NOTICE] – Connected (MP_Mail send)
2012-06-28 11:27:09 000000 —
2012-06-28 11:27:09 000000 — MAILPRESS [ERROR] – *** Mail could not be sent ***