/// <summary>
/// Checks the safe sender.
/// </summary>
/// <param name="toEmailAddresses">To email addresses.</param>
/// <param name="fromEmail">From email.</param>
/// <param name="organizationEmail">The organization email.</param>
/// <returns></returns>
protected virtual SafeSenderResult CheckSafeSender(List <string> toEmailAddresses, MailAddress fromEmail, string organizationEmail)
{
var result = new SafeSenderResult();
// Get the safe sender domains
var safeDomains = GetSafeDomains();
// Check to make sure the From email domain is a safe sender, if so then we are done.
var emailDomain = GetEmailDomain(fromEmail.Address);
if (emailDomain.IsNotNullOrWhiteSpace() && safeDomains.Contains(emailDomain, StringComparer.OrdinalIgnoreCase))
{
return(result);
}
// The sender domain is not considered safe so check all the recipients to see if they have a domain that does not requrie a safe sender
var safeDomainValues = DefinedTypeCache.Get(SystemGuid.DefinedType.COMMUNICATION_SAFE_SENDER_DOMAINS.AsGuid()).DefinedValues;
foreach (var toEmailAddress in toEmailAddresses)
{
bool safe = false;
var toEmailDomain = GetEmailDomain(toEmailAddress);
if (toEmailDomain.IsNotNullOrWhiteSpace() && safeDomains.Contains(toEmailDomain, StringComparer.OrdinalIgnoreCase))
{
var domain = safeDomainValues.FirstOrDefault(dv => dv.Value.Equals(toEmailDomain, StringComparison.OrdinalIgnoreCase));
safe = domain != null && domain.GetAttributeValue("SafeToSendTo").AsBoolean();
}
if (!safe)
{
result.IsUnsafeDomain = true;
break;
}
}
if (result.IsUnsafeDomain)
{
if (!string.IsNullOrWhiteSpace(organizationEmail) && !organizationEmail.Equals(fromEmail.Address, StringComparison.OrdinalIgnoreCase))
{
result.SafeFromAddress = new MailAddress(organizationEmail, fromEmail.DisplayName);
result.ReplyToAddress = fromEmail;
}
}
return(result);
}
private string GetRecipientReplyToAddress(RockEmailMessage emailMessage, Dictionary <string, object> mergeFields, SafeSenderResult safeSenderResult)
{
var replyToAddress = string.Empty;
if (emailMessage.ReplyToEmail.IsNotNullOrWhiteSpace())
{
replyToAddress = emailMessage.ReplyToEmail.ResolveMergeFields(mergeFields, emailMessage.CurrentPerson, emailMessage.EnabledLavaCommands);
}
if (safeSenderResult.IsUnsafeDomain && safeSenderResult.ReplyToAddress != null)
{
if (replyToAddress.IsNullOrWhiteSpace())
{
replyToAddress = safeSenderResult.ReplyToAddress.ToString();
}
else
{
replyToAddress += $",{safeSenderResult.ReplyToAddress.ToString()}";
}
}
return(replyToAddress);
}
