internal void Validate()
{
if (To.Count == 0)
{
throw new ArgumentException(ErrorMessages.EmptyToRecipients);
}
To.Validate();
CC.Validate();
BCC.Validate();
}
public void Validate()
{
if (Settings == null)
{
throw new Exception("Settings must be supplied");
}
Settings.Validate();
CleanCollections();
if (To?.Any() == false && CC?.Any() == false && BCC?.Any() == false)
{
throw new Exception("At lest one To, CC or BCC must be supplied");
}
if (string.IsNullOrWhiteSpace(Body))
{
throw new Exception("Body must have some content");
}
if (string.IsNullOrWhiteSpace(Subject))
{
throw new Exception("Subjet must be supplied");
}
Sender?.Validate();
From?.Validate();
To?.Validate();
CC?.Validate();
BCC?.Validate();
ReplyToList?.Validate();
Headers?.Validate();
Attachments?.Validate();
if (Attachments?.Sum(s => s.Content.Length) > MAXIMUM_SUM_ATTACHMENTS_SIZE)
{
throw new Exception($"Total size of attachments exceeds {(20971520 / 1024) / 1024}MB");
}
if (Headers?.Count > 0 && Headers.Select(s => s.Name.Trim()).Distinct(StringComparer.OrdinalIgnoreCase).Count() != Headers.Count)
{
throw new Exception("Duplicate email headers are not allowed");
}
}