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Mail App For Mac That Filter Utf Encoding Subject: A Comprehensive Guide to Decoding and Encoding UT



I used the phrase "strange characters" so that others can search for it later. In short, in the last few major macOS upgrades (10.11?) Mail.app doesn't properly decode international character sets in the From field, and sometimes the subject line.




Mail App For Mac That Filter Utf Encoding Subject



Given that I'm not the only one that posts about this -- although most folks are not realizing it's about encoding in some way -- it does appear to be a bug, or at least there's a setting somewhere that does this.


So, what about when a subject line is broken? Personally, if I received an email with a subject line that looked off, I may think twice about opening it. It could be a spam or phishing attempt. Or, it could be a perfectly legitimate email with some rendering issues. Will your recipient take that chance? Or will they mark it as spam, and move to the next email bidding for attention in their inbox?


In an email client, the subject line is treated a little differently than the body. It is treated more like a text field than an HTML field. It cannot be styled with HTML tags like`` or ``. But unlike in a plain text email, special characters (such as emojis, em-dashes, etc.) can be pasted in.


Just like AMP for email, fonts, GIFs, and other email enhancements, support for special characters in subject lines can be inconsistent. It also can vary between email clients or ESPs. One more thing to keep in mind: special characters may trigger spam filters, corporate filters, or cause deliverability issues.


For best results, set the charset of your HTML file to `UTF-8`. This tells ESPs, servers and email clients how the characters in your email will be encoded. Character encoding is a link between the visual representation of a character (like a registration mark or em-dash) and the bytes that store them in memory.


Thanks for your reply. I don't know what to look for in the message source. Here is part of the message source from an email I sent from my yahoo email to the same yahoo email address using Thunderbird. The special characters in that mail were displayed as ??.


p.s. as to the question of whether the problem is related to "passing through different servers", is it possible to rule that out since emails I send from the same yahoo! email address through yahoo webmail are displayed correctly when they are received?


Some email clients display the "via" domain when the sender's domain doesn't match the domain that the email was sent from (in this case, amazonses.com). For more information, see Extra info next to sender's name on the Gmail Support website. Alternatively, you can set up DomainKeys Identified Mail (DKIM). When you authenticate your emails using DKIM, email clients typically don't show the "via" domain because the DKIM signature shows that the email is from the domain that it claims to be from. For information about setting up DKIM, see Authenticating Email with DKIM in Amazon SES.


If your message includes characters that aren't in the ASCII character set (such as accented Latin characters, Chinese characters, or Arabic characters), you have to encode those characters using HTML character encoding. You can use web-based tools to encode the characters in your email, such as the HTML Character Convertor on the Email On Acid website.


Alternatively, you can assemble the MIME message yourself. In the MIME message, you can specify that the message should use UTF-8 encoding. When you use UTF-8 encoding, you can use non-ASCII characters directly in your messages. When you've finished creating the MIME message, you can send it using the SendRawEmail API.


PHPMailer is a popular mail-sending library that supports sending via the mail() function or through an SMTP server. It gives access to a set of functions for sending emails, simplifying the process of configuring PHP mail.


If you use a hosting server, Sendmail usually comes already pre-configured. However, you must ensure that your hosting provider allows you to manage the Sendmail service option manually.


I want to create a Rule in Outlook (O365) that will delete those emails from my inbox but can't find any way to include all the UTF-8 characters in the Rule definition (those characters define the symbols).


Unfortunately, I'm using two completely different software packages that fail to copy files with any of those symbols. I can't seem to "fix" it and one of those is a backup software with a very special purpose, and it keeps telling me those emails cannot be copied.


This Service lets you send email, compose drafts, manage labels, mark messages and threads, and conduct a variety of other Gmail account management tasks. See also Mail Service, a simpler service that only allows the sending of email.


There is more to SMTPUTF8 than just Postfix itself. The restof your email infrastructure also needs to be able to handle UTF-8email addresses and message header values. This includes SMTPUTF8protocol support in SMTP-based content filters (Amavisd), LMTPservers (Dovecot), and down-stream SMTP servers.


The header_checks-like and body_checks-like features arenot UTF-8 enabled, and therefore they do not enforce UTF-8 syntaxrules on inputs and outputs. The reason is that non-ASCII text maybe sent in encodings other than UTF-8, and that real email sometimescontains malformed headers. Instead of skipping non-UTF-8 content,Postfix should be able to filter it. You may try to enable UTF-8processing by starting a PCRE pattern with the sequence (*UTF8),but this is will result in "message not accepted, try again later"errors when the PCRE pattern matcher encounters non-UTF-8 input.Other features that are not UTF-8 enabled are smtpd_command_filter,smtp_reply_filter, the *_delivery_status_filter features, and the*_dns_reply_filter features (the latter because DNS is by definitionan ASCII protocol).


Otherwise, Postfix will return the recipient(s) for that email delivery transaction as undeliverable. The delivery status notification message will be an SMTPUTF8 message. It will therefore be subject to the same restrictions as email that is received with the SMTPUTF8 request.


By default, Postfix sets the "SMTPUTF8 requested" flag only onaddress verification probes and on Postfix sendmail submissionsthat contain UTF-8 in the sender address, UTF-8 in a recipientaddress, or UTF-8 in a message header value.


However, if you have a non-ASCII myorigin or mydomain setting,or if you have a configuration that introduces UTF-8 addresses withvirtual aliases, canonical mappings, or BCC mappings, then you mayhave to apply SMTPUTF8 autodetection to all email:


This will, of course, also flag email that was received withoutSMTPUTF8 request, but that contains UTF-8 in a sender addresslocalpart, receiver address localpart, or message header value.Such email was not standards-compliant, but Postfix would havedelivered it if SMTPUTF8 support was disabled.


With Postfix, there is no need to split mailing lists into UTF-8 andnon-UTF-8 members. Postfix will try to deliver the non-UTF8 subscribersover "traditional" non-SMTPUTF8 sessions, as long as the messagehas an ASCII envelope sender address and all-ASCII header values.The mailing list manager may have to apply RFC 2047 encoding tosatisfy that last condition.


With "smtputf8_enable = yes", Postfixrequires that non-ASCII address information is encoded in UTF-8 andwill reject other encodings such as ISO-8859. It is not practicalfor Postfix to support multiple encodings at the same time. Thereis no problem with RFC 2047 encodings such as "=?ISO-8859-1?Q?text?=",because those use only characters from the ASCII characterset.


Pass the -m flag to git mailinfo (see git-mailinfo[1]),so that the Message-ID header is added to the commit message.The am.messageid configuration variable can be used to specifythe default behaviour.


When initially invoking git am, you give it the names of the mailboxesto process. Upon seeing the first patch that does not apply, itaborts in the middle. You can recover from this in one of two ways:


Before any patches are applied, ORIG_HEAD is set to the tip of thecurrent branch. This is useful if you have problems with multiplecommits, like running git am on the wrong branch or an error in thecommits that is more easily fixed by changing the mailbox (e.g.errors in the "From:" lines).


  • Apache SpamAssassin is the #1 Open Source anti-spam platform giving system administrators a filter to classify email and block spam (unsolicited bulk email). It uses a robust scoring framework and plug-ins to integrate a wide range of advanced heuristic and statistical analysis tests on email headers and body text including text analysis, Bayesian filtering, DNS blocklists, and collaborative filtering databases. Apache SpamAssassin is a project of the Apache Software Foundation (ASF). Click here to get started using SpamAssassin!



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