I have checked them all , and this is what happens.When i change the email address to ticketos@gmail.com the mail is send correctly and the reply adress in the mail is correct so it works ok. But when i change it back to the preferred new domain name it swiched back to the old server name. The most puzzeling is, when i look in the exim logging, the mail is sended with the right sender adress as far as i kan see in exim, the delivery address is also correct, but when the mail is delivered in the email box on the system that accepts the mail the old servername (domain name) is showing again ...I am willing to share with you the exact example with the true names to be able to analyse whats gooing on, and when it is some sort of caching .. where should i reset the cache? I have examed php.ini, the database, and so on .. i am puzzeled.. since the gmail test works like a charm. Hum i am using a smartrelay host ... is he... eh .. hum .. rewriting the domain name ... .. i wil check this one that could cause this strange behaviourkeep your posted