Text sent in e-mails is cut

Good afternoon,

I have the Pro lifetime upgrade version of Em Client and I´m having some problems with some e-mails sent.

Sometimes, for no apparent reason at all, some e-mails I send appear with the text cut when compared with the e-mail I have in my sent folder.

I have attached the messages…

In this case it only cut the last sentence and the signature but in some cases it´s a lot more.

Is there anyone with the same problem?

Can somebody help me solve this?

Thanks in advance.

Best regards